Web Forms :: DropDownList Selection Doesn't Show?
Sep 29, 2010
I've got two DropDownLists that are filled using a couple of SqlDataSources, like so:
[Code]....
The third DataSource, dsCriterias, is used to present a set of dynamically added DropDownLists depening on what's selected in the second DropDownList, subcategories. The set of dynamic DropDownLists are presented using this code:
[Code]....
The code works but there's little thing that's bugging me. When the page is first loaded the criterias belonging to the subcategory is not presented. I expect it to show the criterias but ther won't show until I make a choice in the categories-DropDownList meaning if I wan't the first subcategories criterias I have to choose different subcategory and then go back to the first one. It's a bit hard to explain.
An example: When the page is first loaded I get a category presented, eg. Vehicles. In the subcategories I get the alternatives "Bicycles", "Cars" and "Motorcycles". "Bicycles" will be the one presented when the page loads since the stored procedure used by dsSubcategories sorts the data by the subcategory names. The problem is that I don't get the criterias for the "Bicycles" subcategory at page load. To get them I first need to select "Cars" or "Motorcycles" and then choose "Bicycles".
I've tried putting a subcategories.SelectedIndex = 0 in in the OnLoad but nothing seems to do the trick.
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Apr 29, 2010
I have already spent two day to solve this on my own but for some reason I can't. Maybe I'm missing the live cicle of the dropdownlist. I hve a three dropdownlist that filter a gridview and the other two dropdownlists One is "Year" the other is "Country" and the other "Species" Each one of them is filter by the other two. So if I filter for one year it will only show me the species and countries that have records on that year. So I have to reload the gridview and all the dropdownlist.
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Code:
protected void Status_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
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[Code] ....
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? view.Count
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? view.Table.Rows.Count
20
? contractTypeDropDown.SelectedValue
[Code] .....
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Here's all my code related to it.
Inside my masterpage:
[Code]....
I've compared it to many exemples and all is fine
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[CODE].....
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[code]...
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Code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
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<asp:AsyncPostBackTrigger ControlID="QuoteType"
EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
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Code:
protected void QuoteType_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
}
catch (Exception err)
{
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}
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Jul 23, 2010
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[Code]....
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Jan 11, 2011
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[Code]....
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[Code]....
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[Code]....
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ddl1.Items.Add("Select...") [code]....
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'loads the definitive database array[code]...
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I have the following line on my aspx page..
[Code]....
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I have a dropdown list placed in Update Panel the issue is that when i am trying to make selection from the dropdownlist i am not able to select the items under it(i.e. after clicking on the dropdownlist the items get displayed but when i move the mouse over it the dropdownlist gets closed).
This issue is observed in Fire Fox only (works fine in IE and Google Chrome).
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