Only the displaymember is getting selected not the valuemember in combo box

Question

0.00/5 (No votes)

See more:

i'm trying to select something inside of my combobox
ex:

cmbDMGCODE.DisplayMember = "Description";

cmbDMGCODE.ValueMember = "DamageCode";

on the description i got the description of the damage but it's value is 41
when ever i will add it in textbox only the displaymember that i got not the number 41 i'm not getting the supposed valuemember of my display.

here's my code

private void LoadDamage()
       {
           try
           {
               DataTable dt = bt.GetDamage();
               DataRow row = dt.NewRow();
               row[0] = "Select Damage";
               row[1] = "";
               dt.Rows.InsertAt(row, 0);
               cmbDMGCODE.DataSource = dt;
               cmbDMGCODE.DisplayMember = "Description";
               cmbDMGCODE.ValueMember = "DamageCode";
           }
           catch (Exception ex)
           {
               throw ex;
           }
       }

private void btnAddDMG_Click(object sender, EventArgs e)
        {
            if (cmbDMGCODE.SelectedIndex < 2) { return; }
            if (dmgList.Text.Length > 0)
            {
                string dam = dmgList.Text.Trim() + ",";
                string value = Lefts(cmbDMGCODE.Text, Convert.ToInt32(IIf((cmbDMGCODE.Text.IndexOf("(") - 1) > 0, cmbDMGCODE.Text.IndexOf("(") - 1, cmbDMGCODE.Text.Length)));
                if (dam.IndexOf(value) < 0)
                {
                    dmgList.Text = dmgList.Text.Trim() + "," + Lefts(cmbDMGCODE.Text, Convert.ToInt32(IIf((cmbDMGCODE.Text.IndexOf("(") - 1) > 0, cmbDMGCODE.Text.IndexOf("(") - 1, cmbDMGCODE.Text.Length)));
                }
            }
            else
            {
                dmgList.Text = Lefts(cmbDMGCODE.Text, Convert.ToInt32(IIf((cmbDMGCODE.Text.IndexOf("(") - 1) > 0, cmbDMGCODE.Text.IndexOf("(") - 1, cmbDMGCODE.Text.Length)));
            }
        }

private object IIf(bool expression, object truevalue, object falsevalue)
        {
            return expression ? truevalue : falsevalue;
        }
        private string Lefts(string s, int len)
        {
            return s.Substring(0, len);
        }

private string Lefts(string s, int len)
       {
           return s.Substring(0, len);
       }

What I have tried:

i tried to reverse the display and value but as i said only the display i will get in my textbox.

Posted 14-Oct-18 22:11pm

Reden Rodriguez

Updated 14-Oct-18 22:25pm

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2018-10-14T22:25:00

That's because you are using the Text property of the ComboBox when you read out the value.
The DisplayMember tells the ComboBox to use that property of the data and to call ToString on it for display - this string becomes the Text property of the ComboBox
The ValueMember tells the ComboBox to use that property of the data and return that value as the Value property.
This allows you to display a set of user names, and return the UserID as the selected value for example.