Add unbound checkbox column in code

1175

[Infragistics] Dinesh Hosamani posted over 14 years ago

What is the best way to add an unbound checkbox column ? I need to add a control to the Template data field but there is no add method.

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1175

[Infragistics] Dinesh Hosamani posted over 14 years ago

This is how you can add a template field in the code behind. You have to handle the WebDataGrid’s Init event, and in the Init event handler (WebDataGrid1_Init in the example) do the following

      protected void WebDataGrid1_Init(object sender, EventArgs e)

      {

            TemplateDataField tempField = new TemplateDataField();

            tempField.Key = "MyTempField";

            tempField.Header.Text = "My Dynamic Checkbox";

            CompiledBindableTemplateBuilder cbtb = new CompiledBindableTemplateBuilder(new BuildTemplateMethod(BuildCheck), null);

            tempField.ItemTemplate = cbtb;

            this.WebDataGrid1.Columns.Add(tempField);

      }


   void BuildCheck (Control ctl)

      {

            IParserAccessor acess = ctl;

            CheckBox ch = new CheckBox();

            ch.ID = "check2";

            acess.AddParsedSubObject(ch);

      }
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295

ranidevi posted over 13 years ago in reply to [Infragistics] Dinesh Hosamani

Hi Dinesh,

Thanks. I have created the checkbox template column successfully.

How shall i trigger an event for this checkbox

or

how shall i get this checked value from code-behind?

I am googling this for past 2 weeks ... could you provide a solution as soon as possible.
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12679

[Infragistics] Radoslav Minchev posted over 13 years ago in reply to ranidevi

Hi,

Suppose you have registered InitializeRow event handler you will be able to get the value of particular control inside the template column like this :

this.WebDataGrid1.InitializeRow += new InitializeRowEventHandler(WebDataGrid1_InitializeRow);

void WebDataGrid1_InitializeRow(object sender, RowEventArgs e)

    {

     LinkButton lb = (LinkButton)e.Row.Items.FindItemByKey("TemplateColumn").FindControl("LinkButton1");

    }
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835

Mark posted over 13 years ago in reply to [Infragistics] Radoslav Minchev

I have successfully added a TemplateDataField to my WebDataGrid but now I have two problems.

1. Although I set the CommandName and CommandArgument I cannot get the ItemCommand event to fire. I get a postbask, but the ItemCommand event does not fire. Here is my code:

Sub BuildLinks(ByVal ctrl As Control)
    Dim access As IParserAccessor = ctrl
    Dim link As New LinkButton
    link.Text = "View"
    link.CommandArgument = "1"
    link.ID = "linkView"
    link.CommandName = "idEmployee"
    access.AddParsedSubObject(link)
End Sub

//Here is the code to add the Template
AddHandler ProjectedGrid.ItemCommand, AddressOf ProjectedGrid_ItemCommand
Dim templateField As New TemplateDataField
templateField.Header.Text = "Action"
templateField.Key = "KEY_ACTION"
Dim TemplateItem As New CompiledBindableTemplateBuilder(New BuildTemplateMethod(AddressOf BuildLinks), Nothing)
templateField.ItemTemplate = TemplateItem
ProjectedGrid.Columns.Add(templateField)

//In my InitializeRow event I have
Dim actionLink As LinkButton = e.Row.Items.FindItemByKey("KEY_ACTION").FindControl("linkView")
actionLink.CommandArgument = idEmployee

2. After the postback, the LinkButton is gone. The column is still there but the LinkButton is not.

Thoughts?
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835

Mark posted over 13 years ago in reply to Mark

Nevermind. I moved the creating of the TemplateField to Init and that fixed both issues.

Mark
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