I'm trying to apply a RowFilter to a DataTable but the problem with the DataTable is, there are non usual ColumnNames given. Like some ending on a point or some others have spaces in them and so on.
As an example consider this code:
public partial class Form1 : Form
{
public Button ClickMe = new Button();
public DataTable TestTable = new DataTable();
public DataGridView TestView = new DataGridView();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
this.Size = new Size(500, 500);
TestView.Size = new Size(300, 300);
ClickMe.Size = new Size(100, 50);
ClickMe.Text = "Click Me!";
ClickMe.Location = new Point(100, 400);
this.Controls.Add(TestView);
this.Controls.Add(ClickMe);
TestView.Visible = true;
TestTable.Columns.Add(new DataColumn("Addressnumb."));
TestTable.Columns.Add(new DataColumn("SecondColumn"));
TestView.DataSource = TestTable;
ClickMe.MouseClick += ClickMe_MouseClick;
for (int i = 0; i < 10; i++)
{
DataRow Row = TestTable.NewRow();
Row["Addressnumb."] = i.ToString();
Row["SecondColumn"] = "Text " + i.ToString();
TestTable.Rows.Add(Row);
}
}
private void ClickMe_MouseClick(object sender, MouseEventArgs e)
{
MessageBox.Show("Filtering for SecondColumn");
TestTable.DefaultView.RowFilter = "SecondColumn LIKE '%1'";
MessageBox.Show("Filtering for Addressnumb.");
TestTable.DefaultView.RowFilter = "Addressnumb. LIKE '%1'";
}
}
Is there a way how one can escape the characters or mask them that a RowFilter still can be applied?
Related
My english isn't very good.
Hi, I have class where I inherit from GroupBox and I want to use polymorphism and I see in debugger that all is corrent but after compilation I see nothing...
Here is screenshot like it is and how it should be.
grid = new Grid.KierownikGrid();
SetGrid();
private void SetGrid()
{
grid.Location = new System.Drawing.Point(1, 0);
grid.Size = new System.Drawing.Size(10,10);
grid.TabIndex = 10;
grid.TabStop = false;
grid.Text = "";
}
public class KierownikGrid : GroupBox
{
RadioButton addUsers;
RadioButton deleteUsers;
RadioButton troubles;
public KierownikGrid()
:base()
{
Inicjacja();
}
protected void Inicjacja()
{
this.Controls.Add(addUsers = new RadioButton());
this.Controls.Add(deleteUsers = new RadioButton());
this.Controls.Add(troubles = new RadioButton());
this.addUsers.AutoSize = true;
this.addUsers.Checked = true;
this.addUsers.Location = new System.Drawing.Point(3, 10);
this.addUsers.TabIndex = 0;
this.addUsers.TabStop = true;
this.addUsers.Text = "Dodaj użytkownika";
this.addUsers.UseVisualStyleBackColor = true;
this.deleteUsers.AutoSize = true;
this.deleteUsers.Location = new System.Drawing.Point(125, 10);
this.deleteUsers.TabIndex = 1;
this.deleteUsers.Text = "Usuń użytkownika";
this.deleteUsers.UseVisualStyleBackColor = true;
this.troubles.AutoSize = true;
this.troubles.Location = new System.Drawing.Point(250, 10);
this.troubles.TabIndex = 2;
this.troubles.Text = "Problemy";
this.troubles.UseVisualStyleBackColor = true;
}
}
https://i.stack.imgur.com/DFu4t.png
https://i.stack.imgur.com/Dqeim.png
As #BugFinder already mentioned you have to add your control to a form.
There is a tutorial for that.
public class Form1 : System.Windows.Forms.Form
{
//Controls.
private TextBox txtBox = new TextBox();
private Button btnAdd = new Button();
private ListBox lstBox = new ListBox();
private CheckBox chkBox = new CheckBox();
private Label lblCount = new Label();
private void Form1_Load(object sender, EventArgs e)
{
//Add controls to the form.
this.Controls.Add(btnAdd);
this.Controls.Add(txtBox);
this.Controls.Add(lstBox);
this.Controls.Add(chkBox);
this.Controls.Add(lblCount);
}
}
I need your help on how to bind List to the DataGridView. I tried to use the BindingList<T> but still it does not display the records in my gridview. I tried using the List<T>, but it still does not work.
Below is the code which I used:
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
ToolClientController ctrl = new ToolClientController();
IpAddressTextbox.Text = ctrl.GetIPv4Config();
PortNumberTextbox.Text = ctrl.GetPortNumber();
}
private void BrowseButton_Click(object sender, EventArgs e)
{
DialogResult result = openFileDialog1.ShowDialog();
if (result == DialogResult.OK)
{
ToolMsgFileTextbox.Text = openFileDialog1.FileName;
}
}
private void UploadButton_Click(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(ToolMsgFileTextbox.Text))
{
FileTypeError.SetError(UploadButton, "Please enter filename.");
return;
}
if (!openFileDialog1.FileName.Contains(".txt"))
{
FileTypeError.SetError(UploadButton, "File should be in .txt");
return;
}
ToolClientController ctrl = new ToolClientController();
List<ToolMessages> test = new List<ToolMessages>();
ToolMessages tool = new ToolMessages();
tool.IsPass = true;
tool.ToolMessageReply = string.Empty;
tool.ToolMessageRequest = "x";
test.Add(tool);
MessageGridViews.AutoGenerateColumns = false;
DataGridViewTextBoxColumn col1 = new DataGridViewTextBoxColumn();
col1.DataPropertyName = "ToolMessageRequest";
col1.HeaderText = "Request";
MessageGridViews.Columns.Add(col1);
BindingList<ToolMessages> bind = new BindingList<ToolMessages>(test);
MessageGridViews.VirtualMode = true;
MessageGridViews.DataSource = bind;
}
}
Based on your code I prepared simple WinForms app:
public Form1()
{
InitializeComponent();
List<ToolMessages> test = new List<ToolMessages>();
ToolMessages tool = new ToolMessages();
tool.IsPass = true;
tool.ToolMessageReply = string.Empty;
tool.ToolMessageRequest = "x";
test.Add(tool);
dataGridView1.AutoGenerateColumns = false;
DataGridViewTextBoxColumn col1 = new DataGridViewTextBoxColumn();
col1.DataPropertyName = "ToolMessageRequest";
col1.HeaderText = "Request";
dataGridView1.Columns.Add(col1);
BindingList<ToolMessages> bind = new BindingList<ToolMessages>(test);
dataGridView1.DataSource = bind;
dataGridView1.Show();
}
I added dataGridView1 into form directly via WinForms designer, so InitializeComponent method looks like:
private void InitializeComponent()
{
this.dataGridView1 = new System.Windows.Forms.DataGridView();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
this.SuspendLayout();
//
// dataGridView1
//
this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView1.Location = new System.Drawing.Point(560, 57);
this.dataGridView1.Name = "dataGridView1";
this.dataGridView1.Size = new System.Drawing.Size(240, 150);
this.dataGridView1.TabIndex = 1;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(967, 399);
this.Controls.Add(this.dataGridView1);
this.Name = "Form1";
this.Text = "Form1";
((System.ComponentModel.ISupportInitialize)(this.gridControl1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.gridView1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
this.ResumeLayout(false);
}
And everything seems to work just fine... Data are bound to grid and ouput looks like:
which is exactly what I would expect to see, so I don't see any real problem with you solution, unless you post bigger piece of your code on which I can reproduce the issue you are experiencing.
I am new to windows application.I have a table in which there are two fields namely,Title and Type.
In Type field i have two values "O" & "T".
Now i have to populate a datagrid with this table Title as first column and in second column depending on the Type field value i have to place a control i.e when Type field will have "O" at that time i have to place a combobox in that column and when it is "T" i have to place a text Box
i have tried a lot and googled a lot but both controls in same column is quite difficult for me as a beginner.
Plz help me with this requirement.
this is my code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using ERP_Ship.App_Code.Fleet_Person;
using ERP_Ship.App_Code.Appraisal;
using ERP_Ship.Forms.Master;
using ERP_Ship.App_Code.Common;
using ERP_Ship.App_Code.Vessel_Hardening_Measures;
namespace ERP_Ship.Forms.Reports
{
public partial class Vessel_Hardening_Measures : Form
{
// ? //
private DataSet ds = new DataSet("myDs");
private DataTable dt = new DataTable("Apprdtl");
//Define controls must be add to data grid.
private Label lblControl = new Label();
private TextBox txtControl = new TextBox();
private ComboBox cboControl = new ComboBox();
//Capture the clicked cell
private DataGrid.HitTestInfo hitTestGrid;
//Control definishion to add to DataGrid
DataGridTableStyle dataGridStyle = new DataGridTableStyle();
DataGridTextBoxColumn dataGridLableTitle = new DataGridTextBoxColumn();
DataGridTextBoxColumn dataGridLableTitle1 = new DataGridTextBoxColumn();
DataGridTextBoxColumn dataGridLableTitle2 = new DataGridTextBoxColumn();
//DataGridTextBoxColumn dataGridLable = new DataGridTextBoxColumn();
DataGridTextBoxColumn dataGridTextBox = new DataGridTextBoxColumn();
DataGridTextBoxColumn dataGridComboBox = new DataGridTextBoxColumn();
private System.Windows.Forms.DataGrid gv_Appraisal;
#region Form Level Variables
string _strName;
string _strCDCNo;
//DataTable dt = new DataTable();
// OracleConnection con1 = new OracleConnection(ConfigurationManager.ConnectionStrings["MySQLConnection"].ConnectionString.ToString());
I_Common objCommon = new I_Common();
DataTable dt1 = new DataTable("dt1");
#endregion
#region Public Properties
public string SearchName
{
set
{
_strName = value;
}
get
{
return _strName;
}
}
public string SearchCDCNo
{
set
{
_strCDCNo = value;
}
get
{
return _strCDCNo;
}
}
#endregion
public Vessel_Hardening_Measures()
{
InitializeComponent();
InitializeControls();
Load_Year();
//for (int index = 0; index <= gv_Appraisal.Columns.Count - 1; index++)
//{
// gv_Appraisal.Columns[index].DataPropertyName = gv_Appraisal.Columns[index].Name;
//}
//gv_Appraisal.AutoGenerateColumns = false;
}
private void InitializeControls()
{
//label property
lblControl.Cursor = Cursors.Hand;
lblControl.ForeColor = Color.Red;
lblControl.Font = new Font("Arial", 12, FontStyle.Bold | FontStyle.Italic);
//textbox property
txtControl.Cursor = Cursors.Hand;
txtControl.BackColor = Color.WhiteSmoke;
txtControl.ForeColor = Color.DarkSlateBlue;
txtControl.Font = new Font("Arial", 8, FontStyle.Bold);
//textbox events.
txtControl.TextChanged += new EventHandler(txtTextChanged);
string[] dropdownitems = { "Yes", "No", "Not Applicable" };
//Define and add ComboBox rows, will be added to data grid.
for (int i = 0; i < dropdownitems.Count(); i++)
cboControl.Items.Add(dropdownitems[i]);
//combobox property
cboControl.Cursor = Cursors.Hand;
cboControl.DropDownStyle = ComboBoxStyle.DropDownList;
//combobox events.
cboControl.SelectedIndexChanged += new EventHandler(cboSelectedIndexChanged);
}
private void DesignTableStyle()
{
dataGridStyle.PreferredRowHeight = 24;
dataGridStyle.MappingName = "Apprdtl";
gv_Appraisal.TableStyles.Add(dataGridStyle);
dataGridStyle.GridColumnStyles.Add(dataGridLableTitle);
dataGridStyle.GridColumnStyles.Add(dataGridLableTitle1);
dataGridStyle.GridColumnStyles.Add(dataGridLableTitle2);
dataGridStyle.GridColumnStyles.Add(dataGridTextBox);
//dataGridStyle.GridColumnStyles.Add(dataGridComboBox);
dataGridLableTitle.HeaderText = "vhm_id";
dataGridLableTitle.MappingName = "vhm_id";
dataGridLableTitle.Width = 1;
//dataGridLableTitle.Width = 40;
dataGridLableTitle1.HeaderText = "Title";
dataGridLableTitle1.MappingName = "Title";
dataGridLableTitle1.Width = 150;
dataGridLableTitle2.HeaderText = "Type";
dataGridLableTitle2.MappingName = "Type";
dataGridLableTitle2.Width = 1;
//dataGridLableTitle2.Width = 40;
dataGridTextBox.HeaderText = "TEXTBOX_COL";
dataGridTextBox.MappingName = "TextBox_Col";
dataGridTextBox.Width = 130;
//dataGridComboBox.HeaderText = "COMBOBOX_COL";
//dataGridComboBox.MappingName = "ComboBox_col";
//dataGridComboBox.Width = 130;
}
private void Load_DNF() // DATA NOT FOUND OF CDC NO
{
try
{
using (BL_Vessel_Hardening_Measures obj_vsl_hardening_measures = new BL_Vessel_Hardening_Measures())
{
DataTable dataTable = new DataTable();
ds = obj_vsl_hardening_measures.Get_Vessel_Hardening_Measures();
dt1 = ds.Tables[0];
DataColumn dc = new DataColumn("vhm_id");
//Add created column to datatable object.
dt.Columns.Add(dc);
//Create a new column for datatable.
dc = new DataColumn("Title");
//Add created column to datatable object.
dt.Columns.Add(dc);
//Create a new column for datatable.
dc = new DataColumn("Type");
//Add created column to datatable object.
dt.Columns.Add(dc);
//Create a new column for datatable.
//Create a new column for datatable.
dc = new DataColumn("TextBox_Col", System.Type.GetType("System.String"));
//Add created column to datatable object.
dt.Columns.Add(dc);
DataRow dr;
for (int i = 0; i < dt1.Rows.Count; i++)
{
dr = dt.NewRow();
dr["vhm_id"] = dt1.Rows[i]["vhm_id"];
dr["Title"] = dt1.Rows[i]["Title"];
dr["Type"] = dt1.Rows[i]["Type"];
dr["TextBox_Col"] = "";
//dr["ComboBox_Col"] = "";
dt.Rows.Add(dr);
}
// gv_Appraisal.DataSource = ds.Tables[0];
gv_Appraisal.DataSource = dt;
ds.Tables.Remove("Apprdtl");
ds.Tables.Add(dt);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void btn_Close_Click(object sender, EventArgs e)
{
cls_Utility.Close_Pending_Form();
Home objHome = new Home();
I_Common.CloseForm(this.MdiParent, this, objHome);
}
private void Reset_Controls()
{
//txt_CDC_NO.Text = "";
//cmb_Name.SelectedIndex = -1;
}
~Vessel_Hardening_Measures()
{
this.Close();
}
private void Vessel_Hardening_Measures_FormClosed(object sender, FormClosedEventArgs e)
{
cls_Utility.Close_Pending_Form();
}
private void Load_Year()
{
try
{
//ddl_Year.DisplayMember = "Year";
//ddl_Year.ValueMember = "Year";
objCommon.Load_Years(ddl_Year, 1);
//string str_year = "";
//str_year = DateTime.Now.AddYears(-1).Year.ToString();
//ddl_Year.Items.Add(str_year);
//str_year = DateTime.Now.Year.ToString();
//ddl_Year.Items.Add(str_year);
// ddl_Year.SelectedIndex = 1;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Alert", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void Vessel_Hardening_Measures_Load(object sender, EventArgs e)
{
DesignTableStyle();
Load_DNF();
ERP_Ship.App_Code.Common.I_Common.MdiFormTopPanel("Vessel Hardening Measures", "Vessel Hardening Measures", this.MdiParent, true);
//ERP_Ship.App_Code.Common.I_Common.StatusInfoLabel("Double Click the Search Record to View or Edit", "I", this.MdiParent, true);
}
private void gv_Appraisal_MouseUp(object sender, MouseEventArgs e)
{
hitTestGrid = gv_Appraisal.HitTest(e.X, e.Y);
if (hitTestGrid != null)
{
//Which column of datagrid has been clicked.
//switch (hitTestGrid.Column)
//{
if (hitTestGrid.Column == 3)
{
if (gv_Appraisal[gv_Appraisal.CurrentRowIndex, 2].ToString() == "T")
{
dataGridStyle.GridColumnStyles.Clear();
dataGridStyle.GridColumnStyles.Add(dataGridTextBox);
dataGridTextBox.HeaderText = "TEXTBOX_COL";
dataGridTextBox.MappingName = "TextBox_Col";
dataGridTextBox.Width = 130;
//Add texbox control to datagrid.
dataGridTextBox.TextBox.Controls.Add(txtControl);
// txtControl.Text = gv_Appraisal[gv_Appraisal.CurrentRowIndex, 3].ToString();
txtControl.Focus();
}
else if (gv_Appraisal[gv_Appraisal.CurrentRowIndex, 2].ToString() == "O")
{
dataGridStyle.GridColumnStyles.Clear();
dataGridStyle.GridColumnStyles.Add(dataGridComboBox);
dataGridComboBox.HeaderText = "COMBOBOX_COL";
dataGridComboBox.MappingName = "ComboBox_col";
dataGridComboBox.Width = 130;
//Add combobox control to datagrid.
dataGridComboBox.TextBox.Controls.Add(cboControl);
cboControl.Focus();
//for (int i = 0; i < cboControl.Items.Count; i++)
//{
// if (cboControl.Items[i].ToString() == gv_Appraisal[gv_Appraisal.CurrentRowIndex, 3].ToString())
// cboControl.SelectedIndex = i;
//}
}
}
}
}
private void txtTextChanged(object sender, System.EventArgs e)
{
ds.Tables["Apprdtl"].Rows[gv_Appraisal.CurrentRowIndex]["TextBox_Col"] = txtControl.Text;
}
//Combobox selected index changed event.
private void cboSelectedIndexChanged(object sender, System.EventArgs e)
{
ds.Tables["Apprdtl"].Rows[gv_Appraisal.CurrentRowIndex]["TextBox_Col"] = cboControl.Text;
}
}
}
There might be multiple approaches to implement functionality, you are looking for.
I found one sample on this link
Check if approach described there suits to your current requirement needs.
I am creating buttons dynamically using a SQL query:
private void createPagingButtons(DateTime firstDayofWeek, DateTime lastDayofWeek)
{
int i = 1;
//get query that holds all of the names for a date range
SqlDataReader returnedQuery = getDefaultUser(firstDayofWeek, lastDayofWeek);
while (returnedQuery.Read())
{
string buttonName = returnedQuery["Person"].ToString();
string[] splitString = buttonName.Split('(');
Button btn = new Button();
btn.ID = buttonName;
btn.Click += new EventHandler(btn_Click);
btn.Text = splitString[0];
btn.Width = Convert.ToInt32(splitString[0].Length)*9;
btn.CssClass = "dynamicButtons";
pagingPanel.Controls.Add(btn);
i++;
}
}
Because of this, I don't have specific names for them that are static on the ASP.NET side. On postback I would like to button.focus() the one that was clicked.
How do I achieve this?
In btn_Click(), set a page-level variable (e.g., this.clickedButtonId) to the ID and then in createPagingButtons() call btn.Focus() if btn.ID==clickedButtonId:
string clickedButtonId;
private void createPagingButtons(DateTime firstDayofWeek, DateTime lastDayofWeek)
{
int i = 1;
SqlDataReader returnedQuery = getDefaultUser(firstDayofWeek, lastDayofWeek);
while (returnedQuery.Read())
{
string buttonName = returnedQuery["Person"].ToString();
Button btn = new Button();
btn.ID = buttonName;
btn.Click += new EventHandler(btn_Click);
//...
pagingPanel.Controls.Add(btn);
if (btn.ID==this.clickedButtonId) btn.Focus();
i++;
}
}
private void btn_Click(object s, EventArgs e)
{
this.clickedButtonId = ((Button) s).ID;
}
I am trying to create a windows application where I want to display a group of controls (Combo Box, Text Box and a button) on button click inside a panel.
I have created a code to create controls once but I want to create them again and again on button click one below another.
The code I am using is
public partial class Employee_PayHeads_add : Form
{
private TextBox txtBox = new TextBox();
private Button btnAdd = new Button();
private ComboBox combohead = new ComboBox();
public Employee_PayHeads_add()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
this.btnAdd.BackColor = Color.Gray;
this.btnAdd.Text = "Remove";
this.btnAdd.Location = new System.Drawing.Point(240, 25);
this.btnAdd.Size = new System.Drawing.Size(70, 25);
this.txtBox.Text = "";
this.txtBox.Location = new System.Drawing.Point(150, 25);
this.txtBox.Size = new System.Drawing.Size(70, 40);
this.combohead.Location = new System.Drawing.Point(10, 25);
panel1.Controls.Add(btnAdd);
panel1.Controls.Add(txtBox);
panel1.Controls.Add(combohead);
}
Also I want a vertical scroller in the panel if number controls overlap the space.
Thanks in advance
Inside the button click event create new objects, instead of using the one you declared before.
Try something like that:
public partial class Employee_PayHeads_add : Form
{
private TextBox txtBox = new TextBox();
private Button btnAdd = new Button();
private ComboBox combohead = new ComboBox();
private int txtBoxStartPosition = 150;
private int btnAddStartPosition = 240;
private int comboheadStartPosition = 10;
}
public Employee_PayHeads_add()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
TextBox newTxtBox = new TextBox();
Button newBtnAdd = new Button();
ComboBox newCombohead = new ComboBox();
newBtnAdd.BackColor = Color.Gray;
newBtnAdd.Text = "Remove";
newBtnAdd.Location = new System.Drawing.Point(btnAddStartPosition, 25);
newBtnAdd.Size = new System.Drawing.Size(70, 25);
newTxtBox.Text = "";
newTxtBox.Location = new System.Drawing.Point(txtBoxStartPosition, 25);
newTxtBox.Size = new System.Drawing.Size(70, 40);
newCombohead.Location = new System.Drawing.Point(comboheadStartPosition, 25);
panel1.Controls.Add(newBtnAdd);
panel1.Controls.Add(newTxtBox);
panel1.Controls.Add(newCombohead);
txtBoxStartPosition += 50;
btnAddStartPosition += 50;
comboheadStartPosition += 50;
}
I havent tried your code yet, but it shows that it is always creating the new controls on every click event, but as youo have specified the hardcoaded location for buttons, so it must be creating new controls overlapping each other. so you can change the location dynamically and hopefully it will work
If you want to add the controls again and again you have to create new ones. So rather than defining them in your form like that you have to:
private void button1_Click(object sender, EventArgs e)
{
Button btnAdd = new Button();
btnAdd.BackColor = Color.Gray;
btnAdd.Text = "Remove";
btnAdd.Location = new System.Drawing.Point(240, 25);
btnAdd.Size = new System.Drawing.Size(70, 25);
TextBox txtBox = new TextBox();
txtBox.Text = "";
txtBox.Location = new System.Drawing.Point(150, 25);
txtBox.Size = new System.Drawing.Size(70, 40);
ComboBox combohead = new ComboBox();
combohead.Location = new System.Drawing.Point(10, 25);
panel1.Controls.Add(btnAdd);
panel1.Controls.Add(txtBox);
panel1.Controls.Add(combohead);
}
Now you can remove those private declarations on top of your class.