How to read from Combobox

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Dear All,

I have a combobox.

C#

cmbgenric.datasource = datatable("tbl")
cmbgenric.Valuemember = "GenricKey"
cmbgenric.displaymember= "GenricName"

No i have 5 records in Combobox. If select 3 from the combobox, i want the corresponding value from the valuemember.

Please Help

Thanks and Regards,
Mohi

[Edit]The following text copied from the non Solution posted by OP [/Edit]

Dear All,

Is there anyone out there who can help me in reading the values from valuemember of combobox.

Regards,
Mohi

Posted 14-May-12 20:35pm

mvengaqua

Updated 15-May-12 17:43pm

VJ Reddy

v3

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VJ Reddy 15-May-12 23:49pm

Please post your further queries using the Improve Question button available below the question, so that it will be updated and shown under the active tab of quick answers at the top.

Further any query to the solution may please be posted as a comment to that solution so that the member who has posted the solution will get an email and he / she may respond.

If your queries are posted as solutions then members will think that further solutions were given and chances are that those queries may not be noticed.

Thank you :)

3 solutions

Solution 4

The answer for the update to question: Is there anyone out there who can help me in reading the values from valuemember of combobox. can be as follows:

The SelectedValue property of ComboBox can be used to obtain the object containing the value of the member of the data source specified by the ValueMember property as explained here
ListControl.SelectedValue [^]. Even though it is written here as Listcontrol, as ComboBox class[^]is derived from ListControl it is available on ComboBox.

So to get the value

C#

string value = cmbgenric.SelectedValue != null ? 
                      cmbgenric.SelectedValue.ToString() : string.Empty;

Or if the data specified by the ValueMember is other than string type say double type then

C#

double value =Convert.ToDouble(cmbgenric.SelectedValue);

Convert.ToDouble returns 0 when the cmbgenric.SelectedValue is null and does not throw exception.

Posted 15-May-12 17:35pm

VJ Reddy

Updated 15-May-12 17:56pm

v4

Comments

Maciej Los 16-May-12 11:33am

Good answer, my 5!

VJ Reddy 16-May-12 12:32pm

Thank you, losmac :)

Maciej Los 16-May-12 11:34am

Good answer, +5+!

Wendelius 16-May-12 11:40am

Good example!

VJ Reddy 16-May-12 12:32pm

Thank you, Mika :)

Solution 5

dim a as string
a = cmbgenric.selectedvalue

Posted 7-Jun-12 23:37pm

maddoxcom

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Wendelius · Accepted Answer · 2012-05-14T20:42:00

Solution 1

You can use the ComboBox.SelectedItem Property [^] to fetch the item that is currently selected in your comnbo box.

Since you're using a datatable, the item itself should be a DataRowView. So you can reference the value using the Item[^] property.

So something like:

C#

if (cmbgenric.SelectedItem != null) {
   ...((DataRowView)cmbgenric.SelectedItem)["GenricKey"]...
}

Posted 14-May-12 20:42pm

Wendelius

Comments

VJ Reddy 15-May-12 23:38pm

Good answer. 5!

Wendelius 16-May-12 11:40am

Thanks VJ :)

VJ Reddy 15-May-12 23:41pm

Query from OP moved from solution to comment.
Can you explain it bit more.
Regards,
Mohi

Maciej Los 16-May-12 11:34am

Goog answer, 5!

Wendelius 16-May-12 11:40am

Thanks losmac :)