WebMatrix :: Error Running Tutorial 6 - Displaying Data On Grid
Oct 14, 2010<hiddenSegments applyToWebDAV="true">
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namespace
LawnMarketOrders.Models
{[code]....
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<asp:TemplateField
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SortExpression="Amount">
<EditItemTemplate>
<asp:TextBox
ID="TextBox1"
runat="server"
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<ItemTemplate>
<asp:Label
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</ItemTemplate>
<FooterTemplate>
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BorderStyle="Solid"
/>
</asp:TemplateField>
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Dim TotalAmount as decimal 0.0
Function SumAmount(ByVal Amount
As
Decimal)
As
Decimal
TotalAmount = TotalAmount + TotalAmount
End
Function
Function GetTotalAmount()
As
Decimal
Return TotalAmount
End
Function
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...
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[code]...
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"
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Apr 20, 2010I have a gridview grid that I am using as an input and I need to keep a running total on the amount column of my grid.
I have the following template :
[Code]....
In my code behind I have the following in my method: GridView1_RowDataBound
[Code]....
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DataSource.InsertParameters.Add("MIMEType", MIMEType)
The error for the above line is Object not set to an instance of an Object look over the code an see if you can see what is wrong.
Protected Sub Button_Insert_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button_Insert.Click
'Make Sure a file has been successfully Uploaded
If FileUpload_Image1.PostedFile Is Nothing OrElse String.IsNullOrEmpty(FileUpload_Image1.PostedFile.FileName) OrElse FileUpload_Image1.PostedFile.InputStream Is Nothing Then
Label_ErrorMessage.Text = "Error"
Else
Label_ErrorMessage.Text = "No Error"
'Exit Sub
End If
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Dim MIMEType As String = Nothing
Select Case extension
Case ".gif"
MIMEType = "Image/gif"
Case ".jpeg", ".jpe"
MIMEType = "Image/jpeg"
Case ".png"
MIMEType = "Image/png"
Case Else
Label_ErrorMessage.Text = "Invalid Type"
'Exit Sub
End Select
Dim DataSource As New SqlDataSource()
DataSource.ConnectionString = ConfigurationManager.ConnectionStrings("ConnectionString").ToString
DataSource.InsertCommandType = SqlDataSourceCommandType.Text
DataSource.InsertCommand = "Insert Into ClassifiedImages (Title, DateUploaded, MIMEType, ClassifiedId) Values (@Title, @DateUploaded, @MIMEType, @ClassifiedId)"
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DataSource.InsertParameters.Add("DateUploaded", DateTime.Now)
DataSource.InsertParameters.Add("MIMEType", MIMEType)
DataSource.InsertParameters.Add("ClassifiedId", Request.QueryString("ClassifiedId"))
Dim ImageBytes(FileUpload_Image1.PostedFile.InputStream.Length) As Byte
FileUpload_Image1.PostedFile.InputStream.Read(ImageBytes, 0, ImageBytes.Length)
DataSource.InsertParameters.Add("ImageData", ImageBytes.ToString)
Dim RowsAffected As Integer = 0
Try
RowsAffected = DataSource.Insert()
Catch ex As Exception
Response.Redirect("AddImagesProblem.aspx")
End Try
If RowsAffected <> 1 Then
Response.Redirect("AddImagesProblem.aspx")
Else
Response.Redirect("AddImagesSuccess.aspx")
End If
End Sub
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