I created a little form with a TabControl on it and2 TabPages.

On the first page i added a DataGridView,bounded to a store procedure to display rows from a table (not editable).

On de 2nd page i added TextBoxs bounded to the CellsRows of the DataGridView

When I change to the 2nd page the textbox show de contens of the Cells from the DataRow selected on the DataGridView

For this 2nd pagei added an event handler for Validating the textbox on Edit Mode

To edit therow I added a toolstrip button to enable thetextboxs on the TabPage2, CauseValidationand make the BeginEdit of the row.

When I disable the EditMode I force the event to Validate the values of the textboxs and show a message if there is an error. Then make the CancelEdit of the row and disable the textboxs and CauseValidation.

The first time I Enable and Disable the EditMode whit an error (empty value) the programworks well and the textboxs show the contens of the original values.

But when I repeat the secuenceagain (enable and disable the EditMode with the same error) the textbox remain empty and don't get the original value.

I don't know if I doing something wrong
Seems that the 2nd time it miss the original values of the row to refresh the textboxs.

Is there any solution to this ?

Here'smy code (at least the part that relates to the problem)

thank you in advance for any help

private void BindingNavigatorEditItem_Click(object sender, EventArgs e) 

{

if (this.blEdicion) 

{
 

if (Validate()) 

{

this.RowView.DataGridView.EndEdit();

}

else

{

this.RowView.DataGridView.CancelEdit();

Validate();

} 

this.tabPage2.CausesValidation = false; 
this.GroupBox1.CausesValidation = false; 
this.GroupBox1.Enabled = false; 
this.blEdicion = false; 

}

else

{

this.blEdicion = true; 
this.RowView = DataGridView1.CurrentRow; 
this.RowView.DataGridView1.BeginEdit(this.blEdicion);
this.tabPage2.CausesValidation = true; 
this.GroupBox1.CausesValidation = true; 
this.GroupBox1.Enabled = true; 
this.TextBox1.Select(); 

}

private new bool Validate() 

{
this.blAllOk = true; 
this.tabPage2_Validating(this, new CancelEventArgs()); 
return this.blAllOk; 

}

private void tabPage2_Validating(object sender, CancelEventArgs e) 

{

 try

{

if (this.TextBox1.Text == "") 

{

 throw new ArgumentNullException("Empty Value"); 

}
else

{

 this.ErrorProvider1.SetError(this.TextBox1, ""); 

}

if (this.TextBox2.Text == "") 

{

throw new ArgumentNullException("Empty Value"); 

}

else

{

this.ErrorProvider1.SetError(this.TextBox2, ""); 

}

}

catch (System.Exception ex) 

{

System.Windows.Forms.MessageBox.Show(ex.Message); 
e.Cancel =true;
this.blAllOk = false; 

}

}

Hi,

I see you want to edit the datagridviewcell content in another TabPage. Which way did you use to bind the cell content with the textbox? Like textBox1.DataBindings.Add("text",datatable01,"col01"); ? I guess this bound relationship may be changed in some place.

Unfortunately, I am not able to reproduce your issue through your code. Could you please give use a small project to test? Please upload your demo project to some server and offer us the URL. Skydrive (http://skydrive.live.com/ ) may be a good option. You can sign up 25GB free space only with your Windows Live Passport.

Best regards,

Ling Wang

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