Web Forms :: Writing A Variable Into An Asp Textbox?
Mar 25, 2010
i have an IF statement set so that when somebody selects an option from a drop down list it displays some text into a text box to do with the selection. I have an IF statement set up which seems to work as it compiles and i have the results write into a variable. I then want the text box next to the drop down box to display what is written into the variable but i can't figure it out. Here is the code i have so far:
<form runat="server">
<asp:DropDownList id="DropDownList1" runat="server">
<asp:ListItem Value="NA">Select</asp:ListItem>
[code]...
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[code]....
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[Code]....
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[Code]....
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Code:
[code]....
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Jan 24, 2011
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[Code]....
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[Code]....
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Jul 12, 2010
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[Code]....
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Jun 9, 2010
I would think that this would work pretty seamlessly, but I am having trouble getting the text from a textBox control in an accordion pane's content to pass into the paypal web payments https post.
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Protected Sub LinkButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim amt As String = donorAmt.Text
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End Sub
Note: Some of the paypal string has been removed for privacy
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Oct 20, 2010
Nested GridView Control returns "Object variable or With block variable not set" when outer GridView returns rows.
The Nested GridView Control works as long as the outer GridView returns rows, the following code works: [Code]....
Object variable or With block variable not set.
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.NullReferenceException: Object variable or With block variable not set.
Source Error:
Line 118: If e.Row.RowType = DataControlRowType.DataRow Then
Line 119: Dim myStatus_ID As SqlDataSource = CType(e.Row.FindControl("sqlDeviceStatusAssign"), SqlDataSource)
Line 120: If Not e.Row.DataItem("Status_ID") Is Nothing Then
Line 121: myStatus_ID.SelectParameters(0).DefaultValue = e.Row.DataItem("Status_ID")
Line 122: End If
I have tried checking for IsDbNull and checking to see if a label exists in a given row. This code *If Not e.Row.DataItem("Status_ID") Is Nothing Then* appears to do nothing.Same with the following:
*Dim localLblItemReference As Label = CType(e.Row.FindControl("lblItemReference"), Label)
*If Not localLblItemReference Is Nothing Then
******************************************************************************************
To further clarify my question above, I am looking for a method to detect e.Row.DataItem("Status_ID") is nothing/null due to the outer GridView returning 0 results in a query.I have a (Outer) GridView Control with another GridView Control inside of a template field with it's associated SqlDataSource control.
In the "Protected Sub GridViewReport_RowCreated", I provide the Select Parameter for the associated SqlDataSource with the DataItem row value.When the (Outer) GridView Control does not return any rows, the "e.Row.DataItem("Status_ID")" throws a:
Exception Details: System.NullReferenceException: Object variable or With block variable not set.
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Jan 3, 2011
I am using three listviews on a page ... the first is always populated ... the other two are sometimes populated I want to total amounts and counts from all three ... so I set up steps in the DataBound events works great when all three listviews are populated the error "Object Variable or With block variable not set." occurs when LV2 or LV3 is not populated I've tried testing DataItem ... Is Nothing but get the failure on the If test instead
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