Develop Reference

Select block on the drawings with C# using DraftSight API

I need to select a specific block/border on the drawing and print that block/border as a PDF. I can find border by name but I can not take border coordination or at least one point to select the border and then print only that border. I will insert a code snippet that I have. It's messy - in development. Not familiar with DraftSight and DraftSight API.
I'm sure it's several different ways to do it.
Any help will be appreciated.
public static void BlockSelection()
{
DraftSight.Interop.dsAutomation.Application dsApp;
Document dsDoc = default(Document);
PrintManager dsPrintMgr = null;
//Connect to DraftSight application
dsApp = (DraftSight.Interop.dsAutomation.Application)Marshal.GetActiveObject("DraftSight.Application");
dsApp.AbortRunningCommand(); // abort any command currently running in DraftSight to avoid nested commands
//Get active document
dsPrintMgr = dsApp.GetPrintManager();
dsDoc = (Document)dsApp.GetActiveDocument();
object[] dsVarBlkDefinitions = null;
BlockDefinition dsBlkDefinition = default(BlockDefinition);
object[] dsBlock = null;
DraftSight.Interop.dsAutomation.Viewport dsViewport = default(DraftSight.Interop.dsAutomation.Viewport);
MathUtility dsMathUtility = default(MathUtility);
MathPoint startCorner = default(MathPoint);
MathPoint oppositeCorner = default(MathPoint);
Model dsModel = default(Model);
SketchManager dsSketchManeger = default(SketchManager);
ViewManager dsViewManager = default(ViewManager);
object[] dsSheets = null;
Sheet dsSheet = default(Sheet);
string SheetName = null;
int count = 0;
string blockName = "BLOCK1";
string outputFileLocationName = $#"C:\\TestOutput\\fileName";
//Get all Block definitions in the drawing
dsVarBlkDefinitions = (object[])dsDoc.GetBlockDefinitions();
dsBlock = new object[dsVarBlkDefinitions.Length];
for (int index = 0; index < dsVarBlkDefinitions.Length; index++)
{
for (index = dsVarBlkDefinitions.GetLowerBound(0); index <= dsVarBlkDefinitions.GetUpperBound(0); index++)
{
dsBlkDefinition = (BlockDefinition)dsVarBlkDefinitions[index];
var name = dsBlkDefinition.GetName();
Debug.Print($#"Block name: {name}");
// found block that I need to select and print
if (dsBlkDefinition.GetName().Contains(blockName))
{
object[] blocks = dsBlkDefinition.GetBlockInstances();
SelectionManager dsSelectionManager = dsDoc.GetSelectionManager();
SelectionFilter dsSelectionFilter = dsSelectionManager.GetSelectionFilter();
dsSelectionFilter.Clear();
dsSelectionFilter.AddEntityType(dsObjectType_e.dsBlockInstanceType);
dsSelectionFilter.Active = true;
dsSelectionManager.ClearSelections(dsSelectionSetType_e.dsSelectionSetType_Previous);
//if (dsCommandMessage.PromptForSelection(true, "Select dynamic block", errorMessage)) //
count = 0;
count = dsSelectionManager.GetSelectedObjectCount(dsSelectionSetType_e.dsSelectionSetType_Previous);
dsObjectType_e entityType = dsObjectType_e.dsObjectUndefinedType;
//object selObject = dsSelectionManager.GetSelectedObject(dsSelectionSetType_e.dsSelectionSetType_Previous, index, out entityType);
// tried to find any point of the block - not sure how to do that..
MathPoint point = ;
// Pathing that point into the SelectByPoint method.
object selObject = dsSelectionManager.SelectByPoint(point);
BlockInstance dsBlockInstance = selObject as BlockInstance;
// Printer set up
double top = .25;
double bottom = .25;
double left = .25;
double right = .25;
/////dsPrintMgr.PaperSize = "ANSI_A_(8.50_x_11.00_Inches)"; //this overrides the paper size of "Letter" DO NOT USE FOR NITRO
dsPrintMgr.PaperSize = "Letter";
dsPrintMgr.Quality = 4000;
dsPrintMgr.PrintOnCenter = true;
dsPrintMgr.PrintInBackground = true;
dsPrintMgr.ScaleLineWeight = false;
dsPrintMgr.UseAssignedLineWeight = false;
dsPrintMgr.StyleTable = "monochrome.ctb";
dsPrintMgr.SetPrintRange(dsPrintRange_e.dsPrintRange_SpecifyWindow, "", true, 0D, 0D, 0D, 0D);
dsPrintMgr.ScaleToFit = true;
dsPrintMgr.SetPrintMargins(top, bottom, left, right);
dsPrintMgr.PrintOut(1, outputFileLocationName);
// end of printer set up
}
}
}
}// end of BlockSelection method

C# Chart growing outside of panel

My goal is to create a chart that will sit inside of a panel restricting it's size.
I managed to achieve this some time ago but today I noticed that the chart was growing inside of the panel, not allowing the data to be seen.
I have attached a picture bellow which should help understand the issue.
UPDATE
I noticed that if I rmeove 'bottom' from the Anchor property of the panel the chart does not exceed the parent panel but it does not increase with the change of the form which is what I'm looking for.
I also noticed that there was also another chart on the form that was exceeding the parent form, this time the chart would extend to the right not allowing to see the data.
This is the code that generates this second chart and places is inside of the parent panel.
panel_chart.Controls.Clear();
chart1 = new Chart();
chart1.MouseMove += chart1_MouseMove;
chart1.ChartAreas.Add(new ChartArea("chartArea1"));
chart1.Series.Clear();
chart1.Titles.Clear();
var serieOEE = new Series("OEE");
serieOEE.ChartType = SeriesChartType.Line;
serieOEE.XValueType = ChartValueType.String;
var serieProd = new Series("Prod");
serieProd.ChartType = SeriesChartType.Column;
serieProd.XValueType = ChartValueType.String;
var serieDisp = new Series("Disp");
serieDisp.ChartType = SeriesChartType.Column;
serieDisp.XValueType = ChartValueType.String;
var serieQual = new Series("Qual");
serieQual.ChartType = SeriesChartType.Column;
serieQual.XValueType = ChartValueType.String;
DateTime DataReg = DateTime.MinValue;
List<AreaOEE> listaChart = new List<AreaOEE>();
foreach (var item in ListaGrafico) //listaOEE
{
if (item.Designacao == DesignacaoLista)
{
listaChart.Add(item);
}
}
listaChart = listaChart.OrderBy(a => a.IDReg).ToList();
DateTime DataUltimoReg = DateTime.MinValue;
int j = 0;
foreach (var item in listaChart)
{
string HoraGraf = Convert.ToDateTime(item.Hora).ToString("HH:mm");
if (j == 0 || j == listaChart.Count - 1 ||
Math.Abs(Convert.ToDateTime(item.Hora).Subtract(DataUltimoReg).TotalMinutes) >= 30)
{
serieOEE.Points.AddXY(HoraGraf, item.OEE);
serieProd.Points.AddXY(HoraGraf, item.Produtividade);
serieQual.Points.AddXY(HoraGraf, item.Qualidade);
serieDisp.Points.AddXY(HoraGraf, item.Disponibilidade);
DataUltimoReg = Convert.ToDateTime(item.Hora);
if (j == listaChart.Count - 2)
{
break;
}
}
j++;
}
//Adicionar o ultimo
foreach (var item in listaOEE)
{
if (item.Designacao == DesignacaoLista)
{
string sHora = "";
try
{
sHora = item.Hora.Substring(1, 5);
}
catch (Exception ex)
{
string sEx = ex.Message;
}
foreach (var itemOee in serieOEE.Points)
{
if (itemOee.AxisLabel == sHora)
{
itemOee.YValues[0] = item.OEE;
}
}
foreach (var itemP in serieProd.Points)
{
if (itemP.AxisLabel == sHora)
itemP.YValues[0] = item.Produtividade;
}
foreach (var itemD in serieDisp.Points)
{
if (itemD.AxisLabel == sHora)
itemD.YValues[0] = item.Disponibilidade;
}
foreach (var itemQ in serieQual.Points)
{
if (itemQ.AxisLabel == sHora)
itemQ.YValues[0] = item.Qualidade;
}
}
}
chart1.Series.Add(serieProd);
chart1.Series.Add(serieQual);
chart1.Series.Add(serieDisp);
chart1.Series.Add(serieOEE);
serieOEE.BorderWidth = 4;
chart1.ChartAreas[0].AxisX.LabelStyle.Angle = 90;
chart1.ChartAreas[0].AxisX.Interval = 1;
chart1.ChartAreas[0].AxisY.Minimum = 0;
chart1.ChartAreas[0].AxisY.Maximum = 140;
chart1.Legends.Clear();
chart1.Legends.Add(serieOEE.Legend);
chart1.Titles.Add(DesignacaoLista + " " + DataTitulo.ToString("dd-MM HH:mm"));
chart1.Titles[0].Font = new Font("Arial", 13, FontStyle.Bold);
chart1.Visible = true;
chart1.Dock = DockStyle.Fill;
panel_chart.Controls.Add(chart1);

you can change the size of Chart with Chart.Size:
Chart1.Size = new Size(1000, 200); //1000px * 200px

EP Plus - Error Table range collides with table

I am building an export to excel functionality using EP plus and c# application. I am currently getting the error.
'Table range collides with table tblAllocations29'
In my code logic below, I am looping through a data structure that contains key and collection as a value.
I looping across each key and once again loop through each collection belonging to that key.
I basically need to print tabular information for each collection along with its totals.
In the current scenario, I am getting the error when it is trying to print
three arrays
The first array has 17 records
The second array has 29 records
The third array has 6 records
I have taken a note of the ranges it is creating while debugging
The ranges are
A1 G18
A20 G50
A51 G58
controller
[HttpGet]
[SkipTokenAuthorization]
public HttpResponseMessage DownloadFundAllocationDetails(int id, DateTime date)
{
var ms = GetStrategy(id);
DateTime d = new DateTime(date.Year, date.Month, 1).AddMonths(1).AddDays(-1);
if (ms.FIRM_ID != null)
{
var firm = GetService<FIRM>().Get(ms.FIRM_ID.Value);
IEnumerable<FIRMWIDE_MANAGER_ALLOCATION> allocationsGroup = null;
var allocationsGrouped = GetAllocationsGrouped(EntityType.Firm, firm.ID, d);
string fileName = string.Format("{0} as of {1}.xlsx", "test", date.ToString("MMM, yyyy"));
byte[] fileContents;
var newFile = new FileInfo(fileName);
using (var package = new OfficeOpenXml.ExcelPackage(newFile))
{
FundAllocationsPrinter.Print(package, allocationsGrouped);
fileContents = package.GetAsByteArray();
}
var result = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ByteArrayContent(fileContents)
};
result.Content.Headers.ContentDisposition =
new ContentDispositionHeaderValue("attachment")
{
FileName = fileName
};
result.Content.Headers.ContentType =
new MediaTypeHeaderValue("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
return result;
}
return null;
#endregion
}
I have written the following utility that will try and export. It works sometimes when there are two array collections and it failed when processing three. Could somebody tell me what the problems are
FundsAllocationsPrinter.cs
public class FundAllocationsPrinter
{
public static void Print(ExcelPackage package, ILookup<string, FIRMWIDE_MANAGER_ALLOCATION> allocation)
{
ExcelWorksheet wsSheet1 = package.Workbook.Worksheets.Add("Sheet1");
wsSheet1.Protection.IsProtected = false;
int count = 0;
int previouscount = 0;
var position = 2;
int startposition = 1;
IEnumerable<FIRMWIDE_MANAGER_ALLOCATION> allocationGroup = null;
foreach (var ag in allocation)
{
allocationGroup = ag.Select(a => a);
var allocationList = allocationGroup.ToList();
count = allocationList.Count();
using (ExcelRange Rng = wsSheet1.Cells["A" + startposition + ":G" + (count + previouscount + 1)])
{
ExcelTableCollection tblcollection = wsSheet1.Tables;
ExcelTable table = tblcollection.Add(Rng, "tblAllocations" + count);
//Set Columns position & name
table.Columns[0].Name = "Manager Strategy";
table.Columns[1].Name = "Fund";
table.Columns[2].Name = "Portfolio";
table.Columns[3].Name = "As Of";
table.Columns[4].Name = "EMV (USD)";
table.Columns[5].Name = "Percent";
table.Columns[6].Name = "Allocations";
wsSheet1.Column(1).Width = 45;
wsSheet1.Column(2).Width = 45;
wsSheet1.Column(3).Width = 55;
wsSheet1.Column(4).Width = 15;
wsSheet1.Column(5).Width = 25;
wsSheet1.Column(6).Width = 20;
wsSheet1.Column(7).Width = 20;
// table.ShowHeader = true;
table.ShowFilter = true;
table.ShowTotal = true;
//Add TotalsRowFormula into Excel table Columns
table.Columns[0].TotalsRowLabel = "Total Rows";
table.Columns[4].TotalsRowFormula = "SUBTOTAL(109,[EMV (USD)])";
table.Columns[5].TotalsRowFormula = "SUBTOTAL(109,[Percent])";
table.Columns[6].TotalsRowFormula = "SUBTOTAL(109,Allocations])";
table.TableStyle = TableStyles.Dark10;
}
foreach (var ac in allocationGroup)
{
wsSheet1.Cells["A" + position].Value = ac.MANAGER_STRATEGY_NAME;
wsSheet1.Cells["B" + position].Value = ac.MANAGER_FUND_NAME;
wsSheet1.Cells["C" + position].Value = ac.PRODUCT_NAME;
wsSheet1.Cells["D" + position].Value = ac.EVAL_DATE.ToString("dd MMM, yyyy");
wsSheet1.Cells["E" + position].Value = ac.UsdEmv;
wsSheet1.Cells["F" + position].Value = Math.Round(ac.GroupPercent,2);
wsSheet1.Cells["G" + position].Value = Math.Round(ac.WEIGHT_WITH_EQ,2);
position++;
}
position++;
previouscount = position;
// position = position + 1;
startposition = position;
position++;
}
}
}
This is how the data looks when it is displayed successfully

Your issue is entirely in your Print method. You've been bitten by creating a slightly over-complicated row tracking mechanism and combining that with magic numbers. This causes you to position each table after the first one row higher than it should be. The header and subtotals are not part of the table, so you have a couple rows of leeway for the error. Tables can't overlap as you've seen, so EPPlus starts barking at you after you've exhausted your leeway.
All you need to do is keep track of the current row that you are writing to, and account for the space taken by your table header and footer (the subtotals) if you use them.
You declare these:
int count = 0;
int previouscount = 0;
var position = 2;
int startposition = 1;
But to write to the correct row, all you need is this:
var rowNumber = 1;
This will properly start writing your data in row one of the Excel sheet. As you write your table rows, you'll track and increment only the rowNumber. But what about the header and footer of each table? If you start writing at the first row of your table you'll overwrite the header, and if you don't account for both the header and footer you'll start having collisions like you've seen. So lets do this:
var showFilter = true;
var showHeader = true;
var showTotals = true;
var rowAdderForHeader = Convert.ToInt32(showHeader);
var rowAdderForFooter = Convert.ToInt32(showTotals);
These are pretty self explanatory, you'll use the rowAdders to hop the header or footer when needed. rowNumber will always be your current row to create your table and write your data. You use the count when defining your table, but we've made it irrelevant for anything else, so we move it:
var allocationList = allocationGroup.ToList();
//Moved here
var count = allocationList.Count();
Your using statement becomes:
using (ExcelRange Rng = wsSheet1.Cells["A" + rowNumber + ":G" + (count + rowNumber)])
Next, it isn't mentioned in your post, but you are going to run into a problem with the following:
ExcelTableCollection tblcollection = wsSheet1.Tables;
ExcelTable table = tblcollection.Add(Rng, "tblAllocations" + count);
Your table names have to be unique, but you could very well wind up with multiple allocations having the same count, which will cause EPPlus to throw an exception at you for duplicating a table name. So you'll want to also track the index of your current table:
var rowNumber = 1;
var tableIndex = 0;
//...
foreach (var ag in allocation)
{
tableIndex += 1;
//...
}
And use it to ensure unique table names:
ExcelTableCollection tblcollection = wsSheet1.Tables;
ExcelTable table = tblcollection.Add(Rng, "tblAllocations" + tableIndex);
We use our format control variables:
// table.ShowHeader = true;
table.ShowFilter = true;
table.ShowTotal = true;
//Changes to
table.ShowHeader = showHeader;
table.ShowFilter = showFilter;
table.ShowTotal = showTotals;
You have a small typo here:
table.Columns[6].TotalsRowFormula = "SUBTOTAL(109,Allocations])";
//Should be:
table.Columns[6].TotalsRowFormula = "SUBTOTAL(109,[Allocations])";
After you are done defining your table, you begin writing your data with a foreach loop. In order to prevent overwriting the table header if it exists, we'll have to advance one row. We also have to advance one row for each FIRMWIDE_MANAGER_ALLOCATION. If you are using the subtotals, we have to advance one row after the loop completes in order to properly position the next table:
rowNumber += rowAdderForHeader;
foreach (var ac in allocationGroup)
{
//...
rowNumber += 1;
}
rowNumber += rowAdderForFooter;
And that's it. We now properly track our position using just one variable, and we modify the position as necessary if there is a header or footer on your table.
The following is a complete working example that can be run in LinqPad as long as you add the EPPlus package through Nuget. It creates a random number of allocation groups each with a random number of allocations, and then exports them. Change the output file path to something that works for you:
void Main()
{
var dataGenerator = new DataGenerator();
var allocations = dataGenerator.Generate();
var xlFile = new FileInfo(#"d:\so-test.xlsx");
if (xlFile.Exists)
{
xlFile.Delete();
}
using(var xl = new ExcelPackage(xlFile))
{
FundAllocationsPrinter.Print(xl, allocations);
xl.Save();
}
}
// Define other methods and classes here
public static class FundAllocationsPrinter
{
public static void Print(ExcelPackage package, ILookup<string, FIRMWIDE_MANAGER_ALLOCATION> allocation)
{
ExcelWorksheet wsSheet1 = package.Workbook.Worksheets.Add("Sheet1");
wsSheet1.Protection.IsProtected = false;
IEnumerable<FIRMWIDE_MANAGER_ALLOCATION> allocationGroup = null;
var rowNumber = 1;
int tableIndex = 0;
var showFilter = true;
var showHeader = true;
var showTotals = true;
var rowAdderForHeader = Convert.ToInt32(showHeader);
var rowAdderForFooter = Convert.ToInt32(showTotals);
foreach (var ag in allocation)
{
tableIndex += 1;
Console.WriteLine(tableIndex);
allocationGroup = ag.Select(a => a);
var allocationList = allocationGroup.ToList();
var count = allocationList.Count();
using (ExcelRange Rng = wsSheet1.Cells["A" + rowNumber + ":G" + (count + rowNumber)])
{
ExcelTableCollection tblcollection = wsSheet1.Tables;
ExcelTable table = tblcollection.Add(Rng, "tblAllocations" + tableIndex);
//Set Columns position & name
table.Columns[0].Name = "Manager Strategy";
table.Columns[1].Name = "Fund";
table.Columns[2].Name = "Portfolio";
table.Columns[3].Name = "As Of";
table.Columns[4].Name = "EMV (USD)";
table.Columns[5].Name = "Percent";
table.Columns[6].Name = "Allocations";
wsSheet1.Column(1).Width = 45;
wsSheet1.Column(2).Width = 45;
wsSheet1.Column(3).Width = 55;
wsSheet1.Column(4).Width = 15;
wsSheet1.Column(5).Width = 25;
wsSheet1.Column(6).Width = 20;
wsSheet1.Column(7).Width = 20;
table.ShowHeader = showHeader;
table.ShowFilter = showFilter;
table.ShowTotal = showTotals;
//Add TotalsRowFormula into Excel table Columns
table.Columns[0].TotalsRowLabel = "Total Rows";
table.Columns[4].TotalsRowFormula = "SUBTOTAL(109,[EMV (USD)])";
table.Columns[5].TotalsRowFormula = "SUBTOTAL(109,[Percent])";
table.Columns[6].TotalsRowFormula = "SUBTOTAL(109, [Allocations])";
table.TableStyle = TableStyles.Dark10;
}
//Account for the table header
rowNumber += rowAdderForHeader;
foreach (var ac in allocationGroup)
{
wsSheet1.Cells["A" + rowNumber].Value = ac.MANAGER_STRATEGY_NAME;
wsSheet1.Cells["B" + rowNumber].Value = ac.MANAGER_FUND_NAME;
wsSheet1.Cells["C" + rowNumber].Value = ac.PRODUCT_NAME;
wsSheet1.Cells["D" + rowNumber].Value = ac.EVAL_DATE.ToString("dd MMM, yyyy");
wsSheet1.Cells["E" + rowNumber].Value = ac.UsdEmv;
wsSheet1.Cells["F" + rowNumber].Value = Math.Round(ac.GroupPercent, 2);
wsSheet1.Cells["G" + rowNumber].Value = Math.Round(ac.WEIGHT_WITH_EQ, 2);
rowNumber++;
}
//Account for the table footer
rowNumber += rowAdderForFooter;
}
}
}
public class FIRMWIDE_MANAGER_ALLOCATION
{
public FIRMWIDE_MANAGER_ALLOCATION(string name, Random rnd)
{
Name = name;
MANAGER_STRATEGY_NAME = "strategy name";
MANAGER_FUND_NAME = "fund name";
PRODUCT_NAME = "product name";
EVAL_DATE = DateTime.Now;
UsdEmv = (decimal)rnd.NextDouble() * 100000000;
GroupPercent = (decimal)rnd.NextDouble() * 100;
WEIGHT_WITH_EQ = 0;
}
public string Name { get; set; }
public string MANAGER_STRATEGY_NAME { get; set; }
public string MANAGER_FUND_NAME { get; set; }
public string PRODUCT_NAME { get; set; }
public DateTime EVAL_DATE { get; set; }
public decimal UsdEmv { get; set; }
public decimal GroupPercent { get; set; }
public decimal WEIGHT_WITH_EQ { get; set; }
}
public class DataGenerator
{
public static Random rnd = new Random();
public ILookup<string, FIRMWIDE_MANAGER_ALLOCATION> Generate()
{
var data = new List<FIRMWIDE_MANAGER_ALLOCATION>();
var itemCount = rnd.Next(1, 100);
for (var itemIndex = 0; itemIndex < itemCount; itemIndex++)
{
var name = Path.GetRandomFileName();
data.AddRange(GenerateItems(name));
}
return data.ToLookup(d => d.Name, d => d);
}
private IEnumerable<FIRMWIDE_MANAGER_ALLOCATION> GenerateItems(string name)
{
var itemCount = rnd.Next(1,100);
var items = new List<FIRMWIDE_MANAGER_ALLOCATION>();
for (var itemIndex = 0; itemIndex < itemCount; itemIndex++)
{
items.Add(new FIRMWIDE_MANAGER_ALLOCATION(name, rnd));
}
return items;
}
}

Populate TextBoxes from a List

I am trying to populate TextBoxes from a list. I have been able to populate ComboBoxes with comboList:
var comboList = new System.Windows.Forms.ComboBox[4];
comboList[0] = cmbSite1Asset;
comboList[1] = cmbSite2Asset;
comboList[2] = cmbSite3Asset;
comboList[3] = cmbSite4Asset;
List<CRCS.CAsset> assets = _rcs.Assets;
foreach (CRCS.CAsset asset in assets)
{
string id = asset.ID;
for (int i = 0; i < 4; ++i)
{
comboList[i].Items.Add(id);
}
}
But when I try and apply the same principle to TextBoxes
var aosList = new System.Windows.Forms.TextBox[8];
aosList[0] = txtAsset1;
aosList[1] = txtAsset2;
aosList[2] = txtAsset3;
aosList[3] = txtAsset4;
aosList[4] = txtAsset5;
aosList[5] = txtAsset6;
aosList[6] = txtAsset7;
aosList[7] = txtAsset8;
foreach (CRCS.CAsset asset in assets)
{
string id = asset.ID;
for (int n = 0; n < 8; ++n)
{
aosList[n].Items.Add(id);
}
}
TextBox does not like Items.Add ( aosList[n]Items.Add(id); )
I am looking fore a reference or guidance resolving this issue. Thanks!

You should use ComboBox for your problem,instead of iterating on each element,You simply use below lines to populate combobox.
comboList.DataSource=assets;
comboList.DisplayMember="ID";
comboList.ValueMember="ID";
However,if you want your values in TextBox,you can use TextBox.AppendText Method, but it will not work like ComboBox as it will contain texts+texts+texts, will not have indexes like ComboBox.
private void AppendTextBoxLine(string myStr)
{
if (textBox1.Text.Length > 0)
{
textBox1.AppendText(Environment.NewLine);
}
textBox1.AppendText(myStr);
}
private void TestMethod()
{
for (int i = 0; i < 2; i++)
{
AppendTextBoxLine("Some text");
}
}

A Combobox is a collection of items, and so has an Items property from which you can add/remove to change it's contents. A Textbox is just a control that displays some text value, so it has a Text property which you can set/get, and which denotes the string that is displayed.
System.Windows.Forms.TextBox[] aosList = new System.Windows.Forms.TextBox[8];
aosList[0] = txtAsset1;
aosList[1] = txtAsset2;
aosList[2] = txtAsset3;
aosList[3] = txtAsset4;
aosList[4] = txtAsset5;
aosList[5] = txtAsset6;
aosList[6] = txtAsset7;
aosList[7] = txtAsset8;
for (int n = 0; n < 8; ++n)
{
aosList[n].Text = assets[n].ID; // make sure you have 8 assets also!
}

int i = 1;
foreach (var asset in assets)
{
this.Controls["txtAsset" + i].Text = asset.ID;
i++;
}

Check if specified element is already the logical child of another element

I a beginner in C# and WPF. I'm programming plugin for a node based software called vvvv. I have implemented sliders, buttons and other simple ui elements. The following code shows how a sliders node look in c# :
using System.Windows;
using System.Windows.Controls;
using System.Windows.Markup;
using System.Xml;
using VVVV.PluginInterfaces.V2;
namespace VVVV.Packs.UI.Nodes.WPF
{
[PluginInfo(Author = "lecloneur", Category = "WPF", Help = "WPF Slider", Name = "Slider", AutoEvaluate = false)]
public class WPFSlider : GenericNode, IPluginEvaluate
{
[Input("SizeX", DefaultValue = 120, Order = 9, MinValue = 0)]
public IDiffSpread<int> SizeX;
[Input("SizeY", DefaultValue = 120, Order = 9, MinValue = 0)]
public IDiffSpread<int> SizeY;
[Input("Orientation", Order = 1, DefaultEnumEntry = "Horizontal")]
public IDiffSpread<Orientation> OrientationIn;
[Output("Value", Order = 2)]
public ISpread<double> ValueOut;
int elements_count = 0;
public void Evaluate(int SpreadMax)
{
UIElementOut.SliceCount = SpreadMax;
ValueOut.SliceCount = SpreadMax;
for (int i = 0; i < SpreadMax; i++)
{
if (UIElementOut == null || !(UIElementOut[0] is Slider) || elements_count < SpreadMax || OrientationIn.IsChanged || SizeX.IsChanged || SizeY.IsChanged)
{
CreateElement(i);
}
OutputData(i);
Transformation(i, (Slider)UIElementOut[i]);
}
elements_count = SpreadMax;
}
private void CreateElement(int i)
{
UIElementOut[i] = new Slider();
var uiElement = (Slider)UIElementOut[i];
uiElement.Minimum = 0;
uiElement.Maximum = 1;
uiElement.Orientation = OrientationIn[i];
uiElement.IsMoveToPointEnabled = true;
uiElement.Width = SizeX[i]; ;
uiElement.Height = SizeY[i];
uiElement.VerticalAlignment = VerticalAlignment.Center;
uiElement.HorizontalAlignment = HorizontalAlignment.Center;
XmlReader XmlRead = XmlReader.Create("Styles/SliderStyle.xaml");
ResourceDictionary myResourceDictionary = (ResourceDictionary)XamlReader.Load(XmlRead);
XmlRead.Close();
Style uiElementStyle = myResourceDictionary["SliderStyle"] as Style;
uiElement.Style = uiElementStyle;
}
private void OutputData(int i)
{
var uiElement = (Slider)UIElementOut[i];
ValueOut[i] = uiElement.Value;
}
}
}
Now I'm trying to implement a tabcontrol where I could dynamically create tabitem and input UIElement into it. As far as I understand, I can only add one things to a tabitem. So I was thinking about creating a grid everytime I need to and fill it with all the incoming UIElement.
public void Evaluate(int SpreadMax)
{
SpreadMax = 1;
UIElementOut.SliceCount = 1;
for (var i = 0; i < SpreadMax; i++)
{
if (UIElementOut == null || !(UIElementOut[i] is TabControl))
UIElementOut[i] = new TabControl();
var uiElement = (TabControl)UIElementOut[i];
uiElement.Height = 200;
uiElement.Width = 500;
}
Grid grid;
int[] _elementCounts = new int[_elementInputs.SliceCount];
for (var i = 0; i < _elementInputs.SliceCount; i++)
{
if (_elementInputs[i] == null || !(_elementInputs[i] is UIElement))
{
grid = new Grid();
for (var j = 0; j < _elementInputs[i].IOObject.SliceCount; j++)
{
if (_elementInputs[i].IOObject[j] != null)
{
UIElement test = new UIElement();
test = _elementInputs[i].IOObject[j];
grid.Children.Add(test);
}
}
_elementCounts[i] = _elementInputs[i].IOObject.SliceCount;
ValueOut[i] = _elementCounts[i];
if (((TabControl)UIElementOut[0]).Items.Count <= i)
{
((TabControl)UIElementOut[0]).Items.Add(new TabItem { Header = _nameInputs[i].IOObject[0], Content = grid });
}
if (_nameInputs[i].IOObject.IsChanged)
{
((TabItem)((TabControl)UIElementOut[0]).Items[i]).Header = _nameInputs[i].IOObject[0];
}
if (_elementInputs[i].IOObject.IsChanged)
{
((TabItem)((TabControl)UIElementOut[0]).Items[i]).Content = grid;
}
}
}
for (var i = ((TabControl)UIElementOut[0]).Items.Count - 1; ((TabControl)UIElementOut[0]).Items.Count > _elementInputs.SliceCount; i--)
{
((TabControl)UIElementOut[0]).Items.RemoveAt(i);
}
}
I searched a lot but can't find any idea how to solve the error. Apparently adding elements to a the grid throw "specified element is already the logical child of another element";

Hi please try the next method on a several visual objects (child) and check if the resulted object is the same reference. Here is a usefull link with explanations and more...
Extension class code:
public static class VisualTreeHelperExtensions
{
public static T FindParent<T>(this DependencyObject child) where T : DependencyObject
{
while (true)
{
//get parent item
DependencyObject parentObject = VisualTreeHelper.GetParent(child);
//we've reached the end of the tree
if (parentObject == null) return null;
//check if the parent matches the type we're looking for
T parent = parentObject as T;
if (parent != null)
return parent;
child = parentObject;
}
}
}
Example:
var dataGrid1 = dependencyObject1.FindParent<DataGrid>();
var dataGrid2 = dependencyObject2.FindParent<DataGrid>();
var isSameObject = dataGrid1 == dataGrid2;
Updates
The grid can contains a large number of elements but the only last will be visible to user.
The error is coming from the elemnt you want to add itself, that elemnt is belong to another control (some another control has the element as a child).
Find the parent element of the element you want to add, remove the element from the current parent's children collection, and add this element as the new child of your grid.
Try to use snoop to figure out who is the parent of your element (containing in _elementInputs).
Here are some useful links (first, second).
Update 2
As I can understand you have a third party infrastructure in your project because I can't resolve the type of _elementInputs and UIElementOut collections.
Since the _elementInputs is a field, I still can't understand where is _elementInputs came from (can't see that in code).
The code to add a completely new element is wrong:
Correct code(in my opinion)
//here is in my opinion the correct algorithm in this case
var elementFromInputs = _elementInputs[i] as UIElement;
if (elementFromInputs == null) continue;
//try to find parent of type Panel
var parentPanel = elementFromInputs.FindParent<Panel>();
//try to find parent of type ContentControl
var parentContentControl = elementFromInputs.FindParent<ContentControl>();
if (parentPanel == null && parentContentControl == null)
{
//add if there is no any parents
grid.Children.Add(elementFromInputs);
}
if (parentPanel != null)
{
//remove element from parent's collection
parentPanel.Children.Remove(elementFromInputs);
}
if(parentContentControl != null)
{
//reset parent content to release element
parentContentControl.Content = null;
}
grid.Children.Add(elementFromInputs);
Update 3
You've pasted the code (from the correct code section) inside the if which condition is the _elementInputs[i] == null || !(_elementInputs[i] is UIElement) that means filtering all your UIElements out of the scope. Since I'm not familiar with the vvvv concepts I don't know what do you have inside the _elementInputs array, but if you have the UIElements there you need past the code I gave you before the if with condition _elementInputs[i] == null || !(_elementInputs[i] is UIElement).
Please update your question with the next clarifications:
1. What is inside the _elementInputs[i]?
2. What is inside the _elementInputs[i].IOObject?
3. What are UIElements you want to add to the grid?
4. Please run the next method and write me the comment what do you have in your grid and TabControl controls.
Test code
public void Evaluate(int SpreadMax)
{
SpreadMax = 1;
UIElementOut.SliceCount = 1;
for (var i = 0; i < SpreadMax; i++)
{
if (UIElementOut == null || !(UIElementOut[i] is TabControl))
UIElementOut[i] = new TabControl();
var uiElement = (TabControl)UIElementOut[i];
uiElement.Height = 200;
uiElement.Width = 500;
}
Grid grid = new Grid();
var listOfElements = new List<UIElements>
{
new Button {Background = Brushes.Tomato, Content = "Click Me"},
new Button {Background = Brushes.Yellow, Content = "Click Me"},
new Button {Background = Brushes.Green, Content = "Click Me"},
new Button {Background = Brushes.Blue, Content = "Click Me"}
};
listOfElements.ForEach(button => grid.Children.Add(button));
((TabControl)UIElementOut[0]).Items.Add(new TabItem { Header = "Objects", Content = grid });
}
I'll be glad to help if you will have problems with the code.
Regards.