Question

Programmatically adding template field in ASP.NET GridView problem

Asked by: Dixon8402

I am trying to programmatically add a template field to an ASP.NET GridView control using C# code behind. I can successfully add the template field with not problem, the problem I am having is capturing events of the template.
For instance, Before adding the columns dynamically I had a column that was a template field that contained a check box.  When clicked the checkbox called some javascript that highlighted the selected row. Is their a way of still being able to do this using the dynamic method.? Any help would be greatly appreciated.
Thanks

//  Here is where I am adding the template field
protected void buildColumns(string searchType)
{
     GridViewMaterial.Columns.Clear();
 
     // Email Field
     TemplateField templateEmail = new TemplateField();
     templateEmail.ItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, "test");
     templateEmail.HeaderTemplate = new GridViewTemplate(DataControlRowType.Header, "test");
     GridViewMaterial.Columns.Add(templateEmail);
}
 
// Here is the code for building the template field
public class GridViewTemplate : ITemplate
{
     private DataControlRowType templateType;
     private string columnName;
 
     public GridViewTemplate(DataControlRowType type, string colname)
     {
          templateType = type;
          columnName = colname;
     }
 
     public void InstantiateIn(System.Web.UI.Control container)
     {
          switch (templateType)
          {
              case DataControlRowType.Header:
                  CheckBox checkAll = new CheckBox();
                  checkAll.Text = "Select All";
                  checkAll.Attributes.Add("selectAll", "onclick='checkAll(this.form);'");
                  container.Controls.Add(checkAll);
                  break;
              case DataControlRowType.DataRow:
                  CheckBox cb = new CheckBox();
                  cb.ID = "emailCheckBox";
                  cb.Text = "";
                  cb.Attributes.Add("selectRow", "onclick='colorRow(this);'");
                  container.Controls.Add(cb);
                  break;
              default:
                  break;
          }
      }
}
 
// I am basically just looking for a way to capture the click of the checkbox

                                  
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Asked On
2008-02-18 at 08:59:12ID23171849
Tags

ASP.NET, C#

Topics

Programming for ASP.NET

,

Visual Studio

,

C# Programming Language

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: vs1784Posted on 2008-02-18 at 09:30:36ID: 20921785

Try this

protected void GridView2_RowCreated(object sender, GridViewRowEventArgs e)
{
 
if (e.Row.RowType == DataControlRowType.DataRow)
 
{
 
TextBox t1 = new TextBox();
t1.ID = "txt";
t1.Visible = true;
t1.Text = "1";
t1.Attrivbutes.Add("onclick","alert('test');");
 
TableCell tc = new TableCell();
 
tc.Controls.Add(t1);
 
e.Row.Cells.AddAt(0,tc);
 
}
 
}

                                              
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by: Dixon8402Posted on 2008-02-18 at 09:43:41ID: 31431832

Your solution worked but it also led me to figure out the problem with what I was trying and why it wasn't working.

cb.Attributes.Add("selectRow", "onclick='colorRow(this);'");
needed to be changed to
cb.Attributes.Add("selectRow", "colorRow(this);");
then all is good.
Thank you for your help.

 

by: MigitalPosted on 2008-07-17 at 06:14:48ID: 22025009

dafg

20120131-EE-VQP-002

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