Searching a GridView?
I have a Gridview which is bound to a datasource.
I want to check that certain columns within that Gridview are empty. I don't want to have to rely on indexes to find the right column as the DBA has a habit of changing certain tables so I would prefer to have something that would work irrespective of what he does in the background.
If it were a DatabTable I could do :
For Each row As DataRow In priceBandTable.Rows
If row.Item("ProductId") = cbProduct.SelectedValue Then
If (row.Item(ComboBox1.Text) = ComboBox1.Text Then
lblmessage.Text = "Error : This Price Band is already set."
Exit Sub
End If
End If
Next
As with a DataTable I can pull out the exact columns based on names (Column Names will not change, just more will be added, and they may be reordered)
So I've been trying to get something like:
For Each row As GridViewRow In Me.GridView2.Rows
If row.Cells(0).Text = cbProduct.SelectedValue Then
'search the columns.
For c As Integer = 0 To row.Cells.Count
If row.Cells(c)????? = ComboBox1.Text Then
lblmessage.Text = "Error : This Price Band is already set."
Exit Sub
End If
Next c
End If
Next
But as you can see I'm stuck with this line, as I have no idea howto get a particular cells Name.
row.Cells(c)????? = ComboBox1.Text
Any ideas?
I want to check that certain columns within that Gridview are empty. I don't want to have to rely on indexes to find the right column as the DBA has a habit of changing certain tables so I would prefer to have something that would work irrespective of what he does in the background.
If it were a DatabTable I could do :
For Each row As DataRow In priceBandTable.Rows
If row.Item("ProductId") = cbProduct.SelectedValue Then
If (row.Item(ComboBox1.Text) = ComboBox1.Text Then
lblmessage.Text = "Error : This Price Band is already set."
Exit Sub
End If
End If
Next
As with a DataTable I can pull out the exact columns based on names (Column Names will not change, just more will be added, and they may be reordered)
So I've been trying to get something like:
For Each row As GridViewRow In Me.GridView2.Rows
If row.Cells(0).Text = cbProduct.SelectedValue Then
'search the columns.
For c As Integer = 0 To row.Cells.Count
If row.Cells(c)????? = ComboBox1.Text Then
lblmessage.Text = "Error : This Price Band is already set."
Exit Sub
End If
Next c
End If
Next
But as you can see I'm stuck with this line, as I have no idea howto get a particular cells Name.
row.Cells(c)????? = ComboBox1.Text
Any ideas?
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SOLUTION
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ASKER
But I am not after the cell text, what I am after is the Column Name.
Basically I know that the 1st cell of my Table will always be ProductID. So I am matching the row using this value.
I then need to find out what price applies to this product so I am using the the column name to make sure I am comparing the same columns values. Once I know that I have the correct column, I will either do an insert or an update to the database depending on whether or not sufficient information is there for either case.
But the problem I am having with the gridview is trying to establish what the column name is.
Basically I know that the 1st cell of my Table will always be ProductID. So I am matching the row using this value.
I then need to find out what price applies to this product so I am using the the column name to make sure I am comparing the same columns values. Once I know that I have the correct column, I will either do an insert or an update to the database depending on whether or not sufficient information is there for either case.
But the problem I am having with the gridview is trying to establish what the column name is.
ASKER
I ended up using the database.
ASKER
?