How to display label text when a dropdown list is selected..

[arunbojan]

Hi friends,

following is my code

//================
					if (ddlColumnName.SelectedItem.Text == "call duration")
					{
						Label4.Text = "HH:MM:SS";
					}
					//=================

Im using c#, i have one dropdown list with n number of items. one amoung that item is call duration. If user select this option i have to display a label, say hh:mm:ss

can any one advice me the code and where exactly it should be placed.

Thanks in advance :)

[r035198x]

SelectedIndexCh anged event for your dropdown.

[arunbojan]

yes i have placed under SelectedIndexCh anged event but still label value is not displayed..... Anything wrong in my code ?

[r035198x]

yes i have placed under SelectedIndexCh anged event but still label value is not displayed..... Anything wrong in my code ?

Post the full code you used.

[arunbojan]

Following is the code

private void ddlColumnName_SelectedIndexChanged(object sender, System.EventArgs e)
		{
						if (ddlColumnName.SelectedItem.Text == "call duration")
			{
				Label4.Text = "HH:MM:SS";
			}
                                  }

[r035198x]

Following is the code

private void ddlColumnName_SelectedIndexChanged(object sender, System.EventArgs e)
		{
						if (ddlColumnName.SelectedItem.Text == "call duration")
			{
				Label4.Text = "HH:MM:SS";
			}
                                  }

Output the SelectedItem's Text just to be what it's value actually is. Perhaps they have different case or are different strings altogether.

[Frinavale]

Following is the code

private void ddlColumnName_SelectedIndexChanged(object sender, System.EventArgs e)
		{
						if (ddlColumnName.SelectedItem.Text == "call duration")
			{
				Label4.Text = "HH:MM:SS";
			}
                                  }

Just checking: you don't actually have Label4.Visible = false; anywhere do you? If so, you should set Label4.Visible = true; in your SelectedIndexCh anged event.

-Frinny

[arunbojan]

Hi friends i resolved the problem.......

if (ddlColumnName[B].SelectedValue  [/B] == "File size")
			{
								Label4.Text = "Bytes";
			}

instead of selected value i gave selected text........that was the problem.

Thank u......

[r035198x]

Hi friends i resolved the problem.......

if (ddlColumnName[b].SelectedValue  [/b] == "File size")
			{
								Label4.Text = "Bytes";
			}

instead of selected value i gave selected text........that was the problem.

Thank u......

If you had output those values as I suggested above you would have picked that up earlier.

[tlhintoq]

I think you will find it a good practice to take text values you are comparing and drop them both to the same case, just to be safe, since comparrisons are case-sensative.

Most of mine look like this, keeping the code readible to the coder at the cost of reducing to the smallest number of bytes...

if (MyTextBox.Text .ToLower() == "What I Expect".ToLower () )
{
// Then do something here
}

This has saved me more than once from my own typos of 'expect' rather than 'Expect' and so on.