Web Forms :: DropDownList Not Refreshing Despite DataBind
Jan 12, 2011
This is my setup: I've got a dropdownlist of people and a linkbutton next to it to add a person. the linkbutton makes an update panel appear. When clicking save, I want the data to be saved and the new person be selected in the dropdown. As far as I can tell, I have done this properly. After I save the data I refresh the dropdownlist and take the new person's value and set it as the selected value. When stepping through, it shows the ddl with the new person and the new person selected! BUT, when the page comes back, the ddl is unchanged, ie NOT refreshed. I thought it might be something with the Update Panel but I got a similar setup to work on another page! It also works on a nested Update Panel (not shown in the following code). Can you think of why this "deception" is happening?
Here is some of my code.
[Code]....
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Jun 26, 2010
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Aspx:
[Code]....
Code behind:
[Code]....
Why doesn't databind() work until I refresh the page?
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May 10, 2010
I am having trouble with a dropdownlist and it's values not getting updated after postbacks.
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this.dropdownlist.Items.Clear();
this.dropdownlist.SelectedValue =[code]....
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Dec 14, 2010
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WORKS BUT NOT IDEAL
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Oct 29, 2010
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[Code]....
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Protected Sub DVKlient_ItemInserted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewInsertedEventArgs) Handles DVKlient.ItemInserted
Dim connString As String
[code]...
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[code]....
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Mar 12, 2011
vb Code:
SqlDataAdapter dd = new SqlDataAdapter("select * from book_store", conn);
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dd.Fill(ds);
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the code:
this is used to open the new window
[Code]....
[Code]....
[Code]....
[Code]....
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Apr 7, 2010
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Assuming i have two dropdownlists namely: dropdownlistA and dropdownlistB. at page load, i bind values to dropdownlistA. however, depending on the value selected or displayed in dropdownlistA, i want to bind data to dropdownlistB.
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I am currently considered if this might work. If i were to call the databind for dropdownlistA in a different declared method besides its binding in page load, and select the value from bind in the declared method, would any value be selected?
For example:
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How can i work around this to bind both dropdownlists on page load?
[Code]....
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Mar 17, 2011
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protected void Page_PreRender(object sender, EventArgs e)
{
sourceClient.SelectCommand = this.Property1 ? "exec a" : "exec b";
}
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[Category("Settings")]
public int ClientID
{
get
{
return Int32.Parse(DropDownList1.SelectedItem.Value);
}
set
{
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}
}
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Parser Error Message:
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[Code]....
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