Develop Reference

I want to create dynamic textbox and ImageButton on Button Click Inside dynamic gridview cell

I have write code as following :
protected void Page_Load(object sender, EventArgs e)
{
Literal lt;
Label lb;
//Get ContentPlaceHolder
ContentPlaceHolder content = (ContentPlaceHolder)this.Master.FindControl("ContentPlaceHolder1");
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
if (dtCurrentTable.Rows.Count > 0)
{
for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
{
pnlStartDate = new Panel();
pnlStartDate.ID = "pnlStartDate";
// pnlStartDate.BorderWidth = 1;
pnlStartDate.Width = 100;
grvWorkOrder.Rows[rowIndex].Cells[13].Controls.Add(pnlStartDate);
lt = new Literal();
lt.Text = "<br />";
grvWorkOrder.Rows[rowIndex].Cells[13].Controls.Add(lt);
//Button To add TextBoxes
Button btnAddTxt = new Button();
btnAddTxt.ID = "btnAddTxt";
btnAddTxt.Text = "Add TextBox";
btnAddTxt.CausesValidation = false;
btnAddTxt.Click += new System.EventHandler(btnAddTextbox_Click);
grvWorkOrder.Rows[rowIndex].Cells[10].Controls.Add(btnAddTxt);
if (IsPostBack)
{
RecreateDateControls("txtStartDateDynamic", "TextBox", "img1StartDateDynamic", "ImageButton", "ceStartDateDynamic", "CalendarExtender");
}
rowIndex++;
}
}
}
}
protected void btnAddTextbox_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
if (btn.ID == "btnAddTxt")
{
Literal lt = new Literal();
lt.Text = "<br />";
int cntStartDate = FindOccurence("txtStartDateDynamic");
TextBox txt4 = new TextBox();
txt4.ID = "txtStartDateDynamic-" + Convert.ToString(cntStartDate + 1);
txt4.Width = 90;
pnlStartDate.Controls.Add(txt4);
int cntImgStartDate = FindOccurence("img1StartDateDynamic");
ImageButton img1StartDateDynamic = new ImageButton();
img1StartDateDynamic.ID = "img1StartDateDynamic-" + Convert.ToString(cntImgStartDate + 1);
img1StartDateDynamic.ImageUrl = "Images/calender.jpg";
img1StartDateDynamic.Width = 25;
img1StartDateDynamic.CausesValidation = false;
pnlStartDate.Controls.Add(img1StartDateDynamic);
int cntCeStartDate = FindOccurence("ceStartDateDynamic");
CalendarExtender ceStartDateDynamic = new CalendarExtender();
ceStartDateDynamic.ID = "ceStartDateDynamic-" + Convert.ToString(cntCeStartDate + 1);
ceStartDateDynamic.Enabled = true;
ceStartDateDynamic.TargetControlID = "txtStartDateDynamic-" + Convert.ToString(cntCeStartDate + 1);
ceStartDateDynamic.PopupButtonID = "img1StartDateDynamic-" + Convert.ToString(cntCeStartDate + 1);
ceStartDateDynamic.Format = "yyyy/MM/dd";
pnlStartDate.Controls.Add(ceStartDateDynamic);
pnlStartDate.Controls.Add(lt);
}
}
private int FindOccurence(string substr)
{
string reqstr = Request.Form.ToString();
return ((reqstr.Length - reqstr.Replace(substr, "").Length) / substr.Length);
}
private void RecreateDateControls(string ctrlPrefix1, string ctrlType1, string ctrlPrefix2, string ctrlType2, string ctrlPrefix3, string ctrlType3)
{
string[] ctrls1 = Request.Form.ToString().Split('&');
string[] ctrls2 = Request.Form.ToString().Split('&');
string[] ctrls3 = Request.Form.ToString().Split('&');
int cnt1 = FindOccurence(ctrlPrefix1);
int cnt2 = FindOccurence(ctrlPrefix2);
int cnt3 = FindOccurence(ctrlPrefix3);
if (cnt1 > 0 && cnt2 > 0 && cnt3 > 0)
{
Literal lt;
for (int k = 1; k <= cnt1; k++)
{
for (int i = 0; i < ctrls1.Length ; i++)
{
if (ctrls1[i].Contains(ctrlPrefix1 + "-" + k.ToString()))
{
string ctrlName1 = ctrls1[i].Split('=')[0];
string ctrlValue1 = ctrls1[i].Split('=')[1];
if (ctrls1[i].Contains(ctrlPrefix2 + "-" + k.ToString()))
{
string ctrlName2 = ctrls1[i].Split('=')[0];
if (ctrls1[i].Contains(ctrlPrefix3 + "-" + k.ToString()))
{
string ctrlName3 = ctrls1[i].Split('=')[0];
if (ctrlType1 == "TextBox" && ctrlPrefix1 == "txtStartDateDynamic" && ctrlType2 == "ImageButton" && ctrlPrefix2 == "img1StartDateDynamic" && ctrlType3 == "CalendarExtender" && ctrlPrefix3 == "ceStartDateDynamic")
{
TextBox txt4 = new TextBox();
txt4.ID = ctrlName1;
txt4.Text = ctrlValue1;
txt4.Width = 90;
pnlStartDate.Controls.Add(txt4);
ImageButton img1StartDateDynamic = new ImageButton();
img1StartDateDynamic.ID = ctrlName2;
img1StartDateDynamic.ImageUrl = "Images/calender.jpg";
img1StartDateDynamic.Width = 25;
img1StartDateDynamic.CausesValidation = false;
pnlStartDate.Controls.Add(img1StartDateDynamic);
CalendarExtender ceStartDateDynamic = new CalendarExtender();
ceStartDateDynamic.ID = ctrlName3;
ceStartDateDynamic.Enabled = true;
ceStartDateDynamic.TargetControlID = ctrlName1;
ceStartDateDynamic.PopupButtonID = ctrlName2;
ceStartDateDynamic.Format = "yyyy/MM/dd";
pnlStartDate.Controls.Add(ceStartDateDynamic);
lt = new Literal();
lt.Text = "<br />";
pnlStartDate.Controls.Add(lt);
}
}
}
}
break;
}
}
}
}
But the problem is in RecreateDateControls() function ImageButton Counter cnt2 is zero therefore previous controls are not recreated what should i do for it.

go through the link..
create Dynamic Controls

get the value from the dictionary

I am working with Round Robin (RR). I am building random Round-Robin value. I get the time for the RR randomly. In the first run it shows me the current values that i have in the list. but when it goes to run for the second time it just say the index is not presented in the dictionary key. I am trying to fix this problem I have add the time and the quantum tim that the algorithm reduce the value from the dictionary and return back to the dictionary it the value is > 0.
Dictionary<int, int> waytosave = new Dictionary<int, int>();
List<int> randomListxCoor = new List<int>();
List<int> randomListyCoor = new List<int>();
int xCoor;
int yCoor;
Random coor = new Random();
Random setTimeRandom = new Random();
int randomTimeSetting;
int NodeIndex = 0;
Graphics graphDraw;
Graphics drawLine;
int TimeToProcess = 0;
string NodeName = "";
int QuantumTime = 1;
int TotalRouterTime = 0;
int NextNodeToProcess = 0;
public Form1()
{
InitializeComponent();
this.graphDraw = this.panel1.CreateGraphics();
this.drawLine = this.panel1.CreateGraphics();
}
private void btnRun_Click(object sender, EventArgs e)
{
int nodesNumber = (int)this.numNodes.Value;
SolidBrush getNodesDrawn = new SolidBrush(Color.LightYellow);
for (int x = 1; x <= nodesNumber; x++)
{
xCoor = coor.Next(0, 700);
yCoor = coor.Next(0, 730);
if (!randomListxCoor.Contains(xCoor))
{
randomListxCoor.Add(xCoor);
}
if (!randomListyCoor.Contains(xCoor))
{
randomListyCoor.Add(yCoor);
}
randomTimeSetting = setTimeRandom.Next(1, 10);
//Draw the line from main Node to the other Nodes
Pen linePen = new Pen(Color.DarkMagenta, 2);
drawLine.DrawLine(linePen, 350, 360, xCoor, yCoor);
drawLine = this.panel1.CreateGraphics();
graphDraw.FillEllipse(getNodesDrawn, xCoor - 5, yCoor - 5, 15, 12);
//Add the values t the Dictionaries and the List.
waytosave.Add(x, randomTimeSetting);
}
}
private void btnRunTIme_Click(object sender, EventArgs e)
{
this.QuantumTime = (int)this.numQuanrum.Value;
this.ComputeTotalNodeTime();
this.timerRoundRobin.Enabled = true;
}
private void timerRoundRobin_Tick(object sender, EventArgs e)
{
this.NodeIndex = this.GetNextNodeToProcess();
if (this.NodeIndex >= 0)
{
this.waytosave[this.NodeIndex] -= this.QuantumTime;
here at this point it getting crashed. I tried to fixed the number of iteration but if i change the number of iterations it will not go through all the values in the dictionary.
if (this.waytosave[this.NodeIndex] < 0)
{
this.waytosave[this.NodeIndex] = 0;
}
this.NodeName = this.NodeIndex.ToString();
this.TimeToProcess = this.waytosave[this.NodeIndex];
this.txtOutput.Text += "\r\r\n" + " Time Remaining: "
+ this.TimeToProcess
+ "Router name: "
+ this.NodeName;
}
else
{
this.timerRoundRobin.Enabled = false;
this.txtOutput.Text += "\r\r\n" + " Ends x " + TotalRouterTime.ToString();
return;
}
}
private int GetNextNodeToProcess()
{
int NextNodeIndex = -1;
if (NextNodeToProcess >= this.waytosave.Count)
{ NextNodeToProcess = 0; }
for (int i = NextNodeToProcess; i < this.waytosave.Count; i++)
{
if (this.waytosave[i] > 0)
{
NextNodeIndex = i;
break;
}
}
NextNodeToProcess++;
return NextNodeIndex;
}
private void ComputeTotalNodeTime()
{
this.TotalRouterTime = 0;
foreach (KeyValuePair<int, int> item in this.waytosave)
{
this.TotalRouterTime += item.Value;
this.txtOutput.Text += "\r\r\n" + " Time Remaining: "
+ item.Value
+ "Router name: "
+ item.Key;
}
}
I am trying to fix this value from days but i have no success. the problem that in cannot read the first value from the dictionary. How can I solve this problem. Can you please give me some Hence.

How to add checkboxlist selected items to string array?

public string[] selected()
{
string[] selecteditems = new string[chbindustry.Items.Count];
for (int i = 0; i < chbindustry.Items.Count-1; i++)
{
if (chbindustry.Items[i].Selected)
{
selecteditems[i] = chbindustry.Items[i].Text.ToString();
//string Va = string.Empty;
//Va = chbindustry.Items[i].Text.ToString();
// selecteditems[i] = Va;
}
}
return selecteditems;
}
In this code I want to add checkboxlist selected items to string array "selecteditems[i]" here using "selecteditems[i]" I need to bind in this code and show to only selected items
foreach (string s in subdirectoryEntries)
{
DirectoryInfo d = new DirectoryInfo(s);
for (int i = 1; i <= d.GetFiles().Length / 3; i++)
{
selected();
Page.ClientScript.RegisterArrayDeclaration("ImgPaths", "'" + "BusinessCards/" + s.Remove(0, s.LastIndexOf('\\') + 1) + "/" + i + ".jpg'");
Page.ClientScript.RegisterArrayDeclaration("refs", "'" + "DesignBCs.aspx?img=BusinessCards/" + s.Remove(0, s.LastIndexOf('\\') + 1) + "/" + i + "&Side=2'");
}
}

Did you mean this?
var selecteditems = chbindustry.Items.Cast<ListItem>().Where(i=>i.Selected).Select(i=>i.ToString()).ToArray();

Runtime textbox creation creates issue

This code works fine for first two times,i.e ,when i click on "Add more solution" it creates a new row and controls respectively but when i click on "Add more solution" for the third time and "add step" button respective to that,,it creates problem.
protected void Page_Load(object sender, EventArgs e)
{
for (int i = 0; i < TotalNumberAdded; i++)
{
AddControls((i + 1), plcSolution);
}
for (int i = 0; i < TotalNumberSolAdded; i++)
{
AddMoreControls((i + 1), plcAddMoreSolution, 1);
Button b = (Button)plcAddMoreSolution.FindControl("btn" + (i+1));
for (int j = 0; j < TotalNumberSolStepAdded; j++)
{
AddMoreStepControls((j + 1), plcAddMoreSolution);
}
}
}
protected void btnAdd_Click(object sender, EventArgs e)
{
TotalNumberAdded++;
AddControls(TotalNumberAdded, plcSolution);
}
private void AddControls(int controlNumber, PlaceHolder plc)
{
TextBox txtBoxSolution = new TextBox();
Label lblSolution = new Label();
txtBoxSolution.ID = "txtBoxSolution" + controlNumber;
txtBoxSolution.TextMode = TextBoxMode.MultiLine;
txtBoxSolution.Width = 470;
txtBoxSolution.Height = 50;
lblSolution.ID = "lblSolution" + controlNumber;
lblSolution.Text = "Step " + (controlNumber + 1) + ": ";
lblSolution.Width = 200;
plc.Controls.Add(lblSolution);
plc.Controls.Add(txtBoxSolution);
}
protected int TotalNumberAdded
{
get { return (int)(ViewState["TotalNumberAdded"] ?? 0); }
set { ViewState["TotalNumberAdded"] = value; }
}
protected void btnAlternate_Click(object sender, EventArgs e)
{
lblSol.Text = "Solution 1";
string str = (string)ViewState["btnId"];
if (str != null)
{
btn = (Button)plcAddMoreSolution.FindControl(str);
btn.Visible = false;
}
btnAdd.Visible = false;
TotalNumberSolAdded++;
AddMoreControls(TotalNumberSolAdded, plcAddMoreSolution,1);
}
protected int TotalNumberSolAdded
{
get { return (int)(ViewState["TotalNumberSolAdded"] ?? 0); }
set { ViewState["TotalNumberSolAdded"] = value; }
}
private void AddMoreControls(int controlNumber, PlaceHolder plc,int n)
{
TextBox txtBoxMoreSolution = new TextBox();
Label lblMoreSolution = new Label();
btn = new Button();
btn.Text = "add step";
btn.ID = "btn" + controlNumber;
btn.Click += new EventHandler(btn_Click);
ViewState["btnId"] = btn.ID;
Label lbl = new Label();
lbl.Text = "soltuion" + (controlNumber + 1);
lbl.ID = "moreSolution" + (controlNumber + 1);
lbl.Font.Size = 20;
lbl.Font.Underline = true;
txtBoxMoreSolution.ID = "txtBoxMoreSolution" + controlNumber;
txtBoxMoreSolution.TextMode = TextBoxMode.MultiLine;
txtBoxMoreSolution.Width = 470;
txtBoxMoreSolution.Height = 50;
lblMoreSolution.ID = "lblMoreSolution" + controlNumber;
lblMoreSolution.Text = "Step " + n + ": ";
lblMoreSolution.Width = 200;
plc.Controls.Add(lbl);
plc.Controls.Add(lblMoreSolution);
plc.Controls.Add(txtBoxMoreSolution);
plc.Controls.Add(btn);
}
private void btn_Click(object sender, EventArgs e)
{
TotalNumberSolStepAdded++;
AddMoreStepControls(TotalNumberSolStepAdded, plcAddMoreSolution);
}
protected int TotalNumberSolStepAdded
{
get { return (int)(ViewState["TotalNumberSolStepAdded"] ?? 0); }
set { ViewState["TotalNumberSolStepAdded"] = value; }
}
private void AddMoreStepControls(int controlNumber, PlaceHolder plc)
{
TextBox txtBoxMoreStepSolution = new TextBox();
Label lblMoreStepSolution = new Label();
txtBoxMoreStepSolution.ID = "txtBoxMoreStepSolution" + controlNumber;
txtBoxMoreStepSolution.TextMode = TextBoxMode.MultiLine;
txtBoxMoreStepSolution.Width = 470;
txtBoxMoreStepSolution.Height = 50;
lblMoreStepSolution.ID = "lblMoreStepSolution" + controlNumber;
lblMoreStepSolution.Text = "Step " + (controlNumber +1) + ": ";
lblMoreStepSolution.Width = 200;
plc.Controls.Add(lblMoreStepSolution);
plc.Controls.Add(txtBoxMoreStepSolution);
}

this code will help you.. it works fine...
protected void Page_Load(object sender, EventArgs e)
{
for (int i = 0; i < TotalNumberAdded; i++)
{
AddControls(i + 1);
}
for (int i = 0; i < TotalNumberSolAdded; i++)
{
AddMoreControls((i + 1), 1);
DataTable dt = (DataTable)ViewState["t"];
if (dt != null)
{
if ((TotalNumberSolAdded - dt.Rows.Count == 1) && (counter1 == dt.Rows.Count))
{
break;
}
if (i != 0)
{
for (int k = 0; k <= i; k++)
{
int a1 = int.Parse(dt.Rows[k][0].ToString());
b = a1 + b;
}
start = b - int.Parse(dt.Rows[i][0].ToString());
}
else
{
b = int.Parse(dt.Rows[i][0].ToString());
start = 0;
}
for (int j = start; j < b; j++)
{
counter++;
AddMoreStepControls((j + 1), counter);
}
b = 0;
counter = 0;
counter1++;
}
}
}
private void AddControls(int controlNumber)
{
TextBox txtBoxSolution = new TextBox();
Label lblSolution = new Label();
txtBoxSolution.ID = "txtBoxSolution" + controlNumber;
txtBoxSolution.TextMode = TextBoxMode.MultiLine;
txtBoxSolution.Width = 470;
txtBoxSolution.Height = 50;
lblSolution.ID = "lblSolution" + controlNumber;
lblSolution.Text = "Step " + (controlNumber + 1) + ": ";
lblSolution.Width = 200;
plcSolution.Controls.Add(lblSolution);
plcSolution.Controls.Add(txtBoxSolution);
}
protected int TotalNumberAdded
{
get { return (int)(ViewState["TotalNumberAdded"] ?? 0); }
set { ViewState["TotalNumberAdded"] = value; }
}
protected void btnAlternate_Click(object sender, EventArgs e)
{
Number = 0;
lblSol.Text = "Solution 1";
string str = (string)ViewState["btnId"];
if (str != null)
{
btn = (Button)plcAddMoreSolution.FindControl(str);
btn.Visible = false;
}
btnAdd.Visible = false;
TotalNumberSolAdded++;
AddMoreControls(TotalNumberSolAdded, 1);
}
protected int TotalNumberSolAdded
{
get { return (int)(ViewState["TotalNumberSolAdded"] ?? 0); }
set { ViewState["TotalNumberSolAdded"] = value; }
}
private void AddMoreControls(int controlNumber, int n)
{
TextBox txtBoxMoreSolution = new TextBox();
Label lblMoreSolution = new Label();
btn = new Button();
btn.Text = "add step";
btn.ID = "btn" + controlNumber;
btn.Click += new EventHandler(btn_Click);
ViewState["btnId"] = btn.ID;
Label lbl = new Label();
lbl.Text = "Soltuion" + (controlNumber + 1);
lbl.ID = "moreSolution" + (controlNumber + 1);
lbl.Font.Size = 20;
lbl.Font.Underline = true;
lbl.Font.Bold = true;
txtBoxMoreSolution.ID = "txtBoxMoreSolution" + controlNumber;
txtBoxMoreSolution.TextMode = TextBoxMode.MultiLine;
txtBoxMoreSolution.Width = 470;
txtBoxMoreSolution.Height = 50;
lblMoreSolution.ID = "lblMoreSolution" + controlNumber;
lblMoreSolution.Text = "Step " + n + ": ";
lblMoreSolution.Width = 200;
plcAddMoreSolution.Controls.Add(lbl);
plcAddMoreSolution.Controls.Add(lblMoreSolution);
plcAddMoreSolution.Controls.Add(txtBoxMoreSolution);
plcAddMoreSolution.Controls.Add(btn);
}
private void btn_Click(object sender, EventArgs e)
{
TotalNumberSolStepAdded++;
Number++;
string str = (string)ViewState["btnId"];
if (str != null)
{
string resultString = Regex.Match(str, #"\d+").Value;
a = int.Parse(resultString);
table = (DataTable)ViewState["t"];
if (table == null)
{
DataTable table1 = new DataTable();
table1.Columns.Add("count", typeof(int));
dr = table1.NewRow();
table1.Rows.Add(dr);
table1.Rows[a - 1]["count"] = Number;
table1.AcceptChanges();
ViewState["t"] = table1;
}
else
{
if (a != table.Rows.Count)
{
dr = table.NewRow();
table.Rows.Add(dr);
}
table.Rows[a - 1]["count"] = Number;
table.AcceptChanges();
ViewState["t"] = table;
}
}
AddMoreStepControls(TotalNumberSolStepAdded, Number);
}
protected int TotalNumberSolStepAdded
{
get { return (int)(ViewState["TotalNumberSolStepAdded"] ?? 0); }
set { ViewState["TotalNumberSolStepAdded"] = value; }
}
protected int Number
{
get { return (int)(ViewState["Number"] ?? 0); }
set { ViewState["Number"] = value; }
}
private void AddMoreStepControls(int controlNumber, int counter)
{
TextBox txtBoxMoreStepSolution = new TextBox();
Label lblMoreStepSolution = new Label();
txtBoxMoreStepSolution.ID = "txtBoxMoreStepSolution" + controlNumber;
txtBoxMoreStepSolution.TextMode = TextBoxMode.MultiLine;
txtBoxMoreStepSolution.Width = 470;
txtBoxMoreStepSolution.Height = 50;
lblMoreStepSolution.ID = "lblMoreStepSolution" + controlNumber;
lblMoreStepSolution.Text = "Step " + (counter + 1) + ": ";
lblMoreStepSolution.Width = 200;
plcAddMoreSolution.Controls.Add(lblMoreStepSolution);
plcAddMoreSolution.Controls.Add(txtBoxMoreStepSolution);
}

How can i make a task for each item in the listBox if i select more then one item?

First this is the listBox selected index changed event:
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if (listBox1.SelectedItem != null)
{
label4.Text = listBox1.SelectedItem.ToString();
string startTag = "Url: ";
string endTag = " ---";
int startTagWidth = startTag.Length;
int endTagWidth = endTag.Length;
int index = 0;
index = label4.Text.IndexOf(startTag, index);
int start = index + startTagWidth;
index = label4.Text.IndexOf(endTag, start + 1);
string g = label4.Text.Substring(start, index - start);
label4.Text = g;
mainUrl = g;
}
}

Solved it by adding this method:
private string GetUrl(object obj)
{
string startTag = "Url: ";
string endTag = " ---";
int startTagWidth = startTag.Length;
int endTagWidth = endTag.Length;
int index = 0;
index = obj.ToString().IndexOf(startTag, index);
int start = index + startTagWidth;
index = obj.ToString().IndexOf(endTag, start + 1);
string g = obj.ToString().Substring(start, index - start);
mainUrl = g;
return mainUrl;
}
And using it in the DoWork event like this:
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
object input = e.Argument;
string f = GetUrl(input);
this.Invoke(new MethodInvoker(delegate { label2.Text = "Website To Crawl: "; }));
this.Invoke(new MethodInvoker(delegate { label4.Text = f; }));
if (offlineOnline == true)
{
offlinecrawling(f, levelsToCrawl, e);
}
else
{
webCrawler(f, levelsToCrawl, e);
}
}