DropDownList template column in DataGrid

[Guest]

I have a DataGrid (WebForm - C#) that has a template column that contains a dropdownlist named "DdlTest"

In DataGrid1_UpdateCommand, the lin

DropDownList ddlTest = (DropDownList) e.Item.FindControl("DdlTest")

enables me to work with ddlTest - with, for example, ddlTest.SelectedValu

However, in DataGrid1_EditCommand, ddlTest.SelectedValue returns "Object reference not set to an instance of an object.

Is it possible to work with DdlTest in DataGrid1_EditCommand?

 

[Guest]

My goal is to have a dropdownlist in the template column of a datagrid come up with the last saved value selected, when the user clicks 'edit'

 

[jm]

if e.item.ItemType = ListItemType.EditItem then
.....

I have a DataGrid (WebForm - C#) that has a template column that contains

a dropdownlist named "DdlTest" :

In DataGrid1_UpdateCommand, the line

DropDownList ddlTest = (DropDownList) e.Item.FindControl("DdlTest");

enables me to work with ddlTest - with, for example, ddlTest.SelectedValue

However, in DataGrid1_EditCommand, ddlTest.SelectedValue returns "Object

reference not set to an instance of an object."

Is it possible to work with DdlTest in DataGrid1_EditCommand?

if e.item.ItemType = ListItemType.EditItem then
.....

I have a DataGrid (WebForm - C#) that has a template column that contains

a dropdownlist named "DdlTest" :

In DataGrid1_UpdateCommand, the line

DropDownList ddlTest = (DropDownList) e.Item.FindControl("DdlTest");

enables me to work with ddlTest - with, for example, ddlTest.SelectedValue

However, in DataGrid1_EditCommand, ddlTest.SelectedValue returns "Object

reference not set to an instance of an object."

 

[jm]

if e.item.ItemType = ListItemType.EditItem then
....



a dropdownlist named "DdlTest" :
reference not set to an instance of an object."
if e.item.ItemType = ListItemType.EditItem then
....



a dropdownlist named "DdlTest" :
reference not set to an instance of an object."

mg,

I found another way also:

http://www.aspnet101.com/aspnet101/pfTutorials.aspx?id=4

"Selecting Exact Items
To select a particular item in the list, based on the text (visible)
item, you can use this code:

DropDownList.SelectedIndex =
DropDownList.Items.IndexOf(DropDownList.Items.FindByText("text"))

To select a particular item in the list, based on the Value of the
item, use this code:

DropDownList.SelectedIndex =
DropDownList.Items.IndexOf(DropDownList.Items.FindByValue("value"))

Code for a ListBox is a little simpler:

ListBox.Items.FindByText("Text").Selected = true
ListBox.Items.FindByValue("value").Selected = true"


These should be very helpful to you.