I have a table which has several categories like animals, birds etc.
When I select animals in dropdown I should get all the details of all animals which i have in database should display in formview. How can i do tht using C#?
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Could not find control 'DropDownList2' in ControlParameter 'CurrencyID'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: Could not find control 'DropDownList2' in ControlParameter 'CurrencyID'.
any help would be greatly
I have a formview1 with a dropdownlist1 in the insert template. Based on the value of that dropdownlist I would like to display a second formview on the same page in insert mode so that I can write data to two different tables.
How can I accomplish this?
Is this the best way to do it?
Does anyone know if its possible to use a DropDownList within the PagerTemplate to navigate to a specific record? I have been able to place the DropDownList outside of the FormView and PagerTemplate and make it work, however, I can't get it to work inside the PagerTemplate.
On my formview I have a drop down list that is populated with the names of the files in a certain directory. This works fine, but when the drop down list selected value is bound to the database field I get the following error :
'ImageFileDropDownList' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value
I have setup other drop down lists in the same formview populated from SqlDataSources and these all work fine. I can see perhaps why this is an issue because I have not specified a DataValueField or a DataTextField for this drop down that is populated in code (whereas I can for the SQL bound ones) because I'm not sure what these settings would be.
I need to have a "blank" option as well so that the field does not default to the first value in the list.
My code (I have stripped out some meaningless controls) :
<asp:FormView ID="FormView1" runat="server" DataKeyNames="BannerID" DataSourceID="SqlDataSource2" OnItemDeleted="FormView1_ItemDeleted">
<table width="100%" cellspacing="0" cellpadding="4">
I'm trying gridview templateField DropDownList bind with arraylist. When i set bindsource i got this error. "//Error Object reference not set to an instance of an object."
My Sample .aspx
<asp:TemplateField HeaderText="Type"> <FooterTemplate> <asp:DropDownList ID="_grvcboType" runat="server" Width="117px" DataTextField="Display" DataValueField="Value"> </asp:DropDownList> </FooterTemplate> <ItemTemplate> <asp:Label ID="Label7" runat="ser
OK, I'm confused. I've set up a formview with a Linqdata source to allow users to edit records. When I run it, edit data and submit, it blows up and tells me "Linq datasource6 does not support the Select property when the Delete, Insert or Update operations are enabled." I googled that warning and saw a couple of posts on this forum saying the problem is the slect statement has to be removed from the Linq data source for it to allow updates.
But if I remove the select statement then how do I show the user specific info on pageload? plus I thought the two way databind was an advantge of the datasource control.