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query
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Join Date: Dec 2008
Posts: 39
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sir i am developing application in windows so i want that when i serach data that data then that data is dislpayed indatagridview when i am doing that thecvdata is displayed but there is one blank row created in gridview below that row:means that suppose in first row of gridview tge serach data is there and below that an emnpty row is created .so how i block to create an empty row
i do search in keydown event
i do search in keydown event
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Join Date: Dec 2008
Posts: 39
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Solved Threads: 0
con = New OleDbConnection(constr) adpt = New OleDbDataAdapter("select * from drs_entry_list where drsno='" + DrsnoToolStripTextBox.Text + "' order by srno", con)
ds = New DataSet
adpt.Fill(ds)
If ds.Tables(0).Rows.Count - 1 >= 0 Then
For j As Integer = 0 To ds.Table0).Rows.Count - 1
Dim org As String = ds.Tables(0).Rows(j).Item(4) DataGridView1.Rows(DataGridView1.Rows(j).Cells(0).rowindex).Cells(5).Value = org.ToString
Dim AWBNO As Integer = ds.Tables(0).Rows(j).Item(1)
DataGridView1.Rows(DataGridView1.Rows(j).Cells(1).RowIndex).Cells(1).Value = AWBNO.ToString
Next
End If
End If
in this when i search through drsno the in datagridview it gives error :Index was out of range : i need that row is fetched and below it no empty row is created and when i press enter in any cell of datagridview a bove row ios copied as second row in datagridview
ds = New DataSet
adpt.Fill(ds)
If ds.Tables(0).Rows.Count - 1 >= 0 Then
For j As Integer = 0 To ds.Table0).Rows.Count - 1
Dim org As String = ds.Tables(0).Rows(j).Item(4) DataGridView1.Rows(DataGridView1.Rows(j).Cells(0).rowindex).Cells(5).Value = org.ToString
Dim AWBNO As Integer = ds.Tables(0).Rows(j).Item(1)
DataGridView1.Rows(DataGridView1.Rows(j).Cells(1).RowIndex).Cells(1).Value = AWBNO.ToString
Next
End If
End If
in this when i search through drsno the in datagridview it gives error :Index was out of range : i need that row is fetched and below it no empty row is created and when i press enter in any cell of datagridview a bove row ios copied as second row in datagridview
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Join Date: Nov 2008
Posts: 63
Reputation:
Solved Threads: 10
First, it's better to organize your code and make it readable 
Second, if no records has been found, the code If MyTable .Rows.Count - 1 >= 0 will raise an error because "Rows.Count = 0" and it cannot be decreased -1
Check if Rows.Count > 0

con = New OleDbConnection(constr)
adpt = New OleDbDataAdapter("select * from drs_entry_list where drsno='" + DrsnoToolStripTextBox.Text + "' order by srno", con)
ds = New DataSet
adpt.Fill(ds)
Dim MyTable as DataTable = ds.Tables(0)
If MyTable.Rows.Count - 1 >= 0 Then
etc etc etc.Second, if no records has been found, the code If MyTable .Rows.Count - 1 >= 0 will raise an error because "Rows.Count = 0" and it cannot be decreased -1
Check if Rows.Count > 0
Last edited by 4advanced; Apr 29th, 2009 at 4:31 am.
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