.NET3.0/C# How to set Selected property...

[momenee]

Problem: How to set the Selected property of items in a CheckBoxList in the EditItemTemplat e of a FormView control that has been populated initially using an ObjectDataSourc e.

I have a column in a SQL Server 2005 table for a person's race. A CheckBoxList is used to get this information from the user. Since a person can be multi-racial, they can check multiple checkboxes. The checked values are saved as a comma-delimited string to the database.

I have another GUI used by someone who can edit a person's information. An ObjectDataSourc e is used to populate a FormView control. The itemtemplate shows the comma-delimited string, e.g., 'African American, White'. In edit mode I want to show a CheckBoxList with all the possible values and set the Selected property of items matching what has come down from the database.

What is the best way to do this? I can't seem to get a reference to the CheckBoxList using the FormView's FindControl method and I'm not sure which event to use--I tried ItemCreated, DataBound, and PageLoad.

Once I know which event to use, I was going to do something like the following:

 
Child c = (Child)HttpContext.Current.Session["ChildInfo"];
if (c != null)
{
   string[] tempArray = c.Race.Split(',');
   CheckBoxList cbl = viewDemog.FindControl("cblRace");
   for (int i = 0; i < cbl.Items.Count; i++)
      for (int j = 0; j < tempArray.Length; j++)
         if (cbl.Items[i].Text == tempArray[j])
            cbl.Items[i].Selected = true;
}
 

Thanks in advance
GM

[Usha Reddy]

Hi!!

Below is the code to set the Selected Property of Items in CheckBox in the EditItemTemplat e of the Grid (in VB.Net)

CType(gvMaster. Rows(intEditRow ).FindControl(" Edit_Item"), CheckBox).Check ed = True


You can use PreRender Event of the GridView to write this code

Note: This event will Trigger everytime So be clear and use some logic to not Trigger this code everytime or else you will get the error like "object Referrence not set to an instance of an object"