DataSource Controls :: Add More Than One Default Value For ControlParameter?
Jan 4, 2011
Some of you might know that I am currently working on a simple blog (thread with full details here). There is a slight problem however ! After achieving the post filtering, the blog doesn't show any posts, unless; I click on of the categories. I was hoping that the blog would show ALL posts at first, and THEN if a user clicks a Category, the filtering would occur. So I went over the code again, and there was this:
[Code]....
The DefaultValue="0" caught my eye, so I changed the number to "1" and I got all the posts in the [ General ] category, I tried "2" and I got the posts from the [ Programming ] category ..etc So I was thinking how I'd go about solving this problem, because (initially) I want the posts from ALL categories to show. Is it possible to add more than one defaultValue ? for example: DefaultValue = "1,2,3"
I have tried the above and it gave me errors, so obviously it doesn't work that way, but is there another way of adding more default values ? Or could you think of a different way to make all the posts show ?
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Type="String"
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[Code]....
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Description:
An unhandled exception occurred during the execution of the current web request. 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 'GridView1' in ControlParameter 'ID'.
My code is:
[Code]....
[Code]....
[Code]....
[Code]....
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[Code]....
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{
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[Code]....
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[Code]....
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<asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderStyle-VerticalAlign="Bottom">
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<EditItemTemplate>
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<asp:Parameter Name="id" Type="Int32" />
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<asp:ControlParameter ControlID="tbRoomname" PropertyName="Text" Name="roomname" Type="String" />
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<asp:ControlParameter ControlID="tbPersreception" PropertyName="Text" Name="persreception" Type="String" />
<asp:ControlParameter ControlID="tbPersdiner" PropertyName="Text" Name="persdiner" Type="String" />
<asp:ControlParameter ControlID="tbPersparty" PropertyName="Text" Name="persparty" Type="String" />
<asp:ControlParameter ControlID="tbDescriptiontext" PropertyName="Text" Name="descriptiontext" Type="String" />
<asp:Parameter Name="id" Type="Int32" />
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And get this error when I click 'Edit' and then 'Update':
Server Error in '/' Application. Could not find control 'tbDescriptiontext' in ControlParameter 'descriptiontext'.Description: An unhandled exception occurred during the execution of the current web request. 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 'tbDescriptiontext' in ControlParameter 'descriptiontext'.
Source Error:
[Code]....
Stack Trace:
[Code]....
[InvalidOperationException: Could not find control 'tbDescriptiontext' in ControlParameter 'descriptiontext'.]
System.Web.UI.WebControls.ControlParameter.Evaluate(HttpContext context, Control control) +2961386
System.Web.UI.WebControls.Parameter.UpdateValue(HttpContext context, Control control) +152
System.Web.UI.WebControls.ParameterCollection.UpdateValues(HttpContext context, Control control) +113
System.Web.UI.WebControls.ParameterCollection.GetValues(HttpContext context, Control control) +47
System.Web.UI.WebControls.ObjectDataSourceView.ExecuteUpdate(IDictionary keys, IDictionary values, IDictionary oldValues) +1204
System.Web.UI.DataSourceView.Update(IDictionary keys, IDictionary values, IDictionary oldValues, DataSourceViewOperationCallback callback) +3636597
System.Web.UI.WebControls.GridView.HandleUpdate(GridViewRow row, Int32 rowIndex, Boolean causesValidation) +1336
System.Web.UI.WebControls.GridView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +641
System.Web.UI.WebControls.GridViewRow.OnBubbleEvent(Object source, EventArgs e) +164
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +52
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3691
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1
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[Code]....
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[Code]....
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i = cmd.ExecuteNonQuery()
so....
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[Code]....
How can I configure the DataSet to display the table "Variables" by default?
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End If............................................
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I have a gridview tied to a sqlDataSource. I want to filter it using FilterExpression of SqlDataSource. The controlParameter that I want to use is dropdownList SelectedItem.Value. This value is an integer. I am getting this exception: System.Data.EvaluateException:{"Cannot perform '=' operation on System.Int32 and System.String."}
[Code]....
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