asked on

i keep forgetting this - Find List Box item by ValueMember not List Box Index

If I pick an item from a ListBox that is assigned a DataSource and has the DisplayMember and ValueMember assigned for each item in the list......when I pick an item in the ListBox....I want to store that value....and then use that value to programmatically select the same item in another list box........which I know will have the same ValueMember value as the other ListBox item had.

Tom Knowlton

ASKER

For example:

private void listBoxRDOnly_DoubleClick(object sender, System.EventArgs e)
            {
                  //get ID
                  int tempAEID = ReturnListBoxSelectedValue(this.listBoxRDOnly);
                  //navigate to first tab
                  this.tabControl1.SelectedTab = 1;
                  //check Active filter if it is unchecked
                  if(!this.checkBoxShowActive.Checked)
                  {
                        this.checkBoxShowActive.Checked = true;
                  }
                  //refresh list box
                  RefreshAEPOOLList();


      //programmatically pic the AE ID ////////////////////////// HOW DO I DO THIS......THIS IS A DIFFERENT LIST BOX on another TAB PAGE.....BUT HAS THE SAME DATASOURCE, etc.

            }

ASKER CERTIFIED SOLUTION

dungla

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dungla

private void listBoxRDOnly_DoubleClick(object sender, System.EventArgs e)
{
//get ID
int tempAEID = ReturnListBoxSelectedValue(this.listBoxRDOnly);
//navigate to first tab
this.tabControl1.SelectedTab = 1;
//check Active filter if it is unchecked
if(!this.checkBoxShowActive.Checked)
{
this.checkBoxShowActive.Checked = true;
}
//refresh list box
RefreshAEPOOLList();

//programmatically pic the AE ID ////////////////////////// HOW DO I DO THIS......THIS IS A DIFFERENT LIST BOX on another TAB PAGE.....BUT HAS THE SAME DATASOURCE, etc.
// set selected value to list box
ListBox.SelectedValue = tempAEID;

}
private int ReturnListBoxSelectedValue(ListBox lb)
{
if (lb.SelectedValue != null)
{return int.Parse(lb.SelectedValue.ToString());}
else { return 0;}
}

Tom Knowlton

ASKER

What I need to do is select an item in a ListBox by ValueMember.

Tom Knowlton

ASKER

private void listBoxRDOnly_DoubleClick(object sender, System.EventArgs e)
{
      //get ID
      int tempAEID = ReturnListBoxSelectedValue(this.listBoxRDOnly);
      //navigate to first tab
      this.tabControlAETabPages.SelectedTab = this.tabPageManageAE;
      //check Active filter if it is unchecked
      if(!this.checkBoxShowActive.Checked)
      {
            this.checkBoxShowActive.Checked = true;
      }
      //refresh list box
      RefreshAEPOOLList();
      //programmatically pic the AE ID

      this.listBoxAEtoManage.SelectedValue = tempAEID;

}

This code works....but the last line HIGHLIGHTS the right ITEM......but it does not function like a MOUSE CLICK....the Selected Index Changed event does not fire.

dungla

You can use ListBox.SetSelected(index, true). For example

private void listBoxRDOnly_DoubleClick(object sender, System.EventArgs e)
{
//get ID
int tempAEID = ReturnListBoxSelectedValue(this.listBoxRDOnly);
//navigate to first tab
this.tabControlAETabPages.SelectedTab = this.tabPageManageAE;
//check Active filter if it is unchecked
if(!this.checkBoxShowActive.Checked)
{
this.checkBoxShowActive.Checked = true;
}
//refresh list box
RefreshAEPOOLList();
//programmatically pic the AE ID

//find the index of selected item in list
int index = listBoxAEtoManage.Items.IndexOf(tempAEID);
// set selected for list box
this.listBoxAEtoManage.SetSelected(index, true);
}

Tom Knowlton

ASKER

Noted....thanks!