combox with databound

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when I used databound for get the value from database, how can I hide or (make some items invisable) from this combo.
when I tried to delete some items the following error occur
Items collection cannot be modified when the DataSource property is set.
best regards

Posted 9-Aug-13 23:09pm

somur-ruteeb

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2 solutions

Solution 2

first make a DataTable from current ComboBox DataSource:

DataTable dt =(DataTable) comboBox1.DataSource;

then find target item in DT and remove it from DT.
then set again DT for comboBox datasourse:

  DataTable dt = (DataTable)comboBox1.DataSource;
           
DataRow dr = dt.Rows.Find("TargetKey");
dt.Rows.Remove(dr);
           
comboBox1.DataSource = dt;

Posted 10-Aug-13 0:07am

Morteza Karimian Kelishadrokhi

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renish patel · Accepted Answer · 2013-08-10T00:01:00

Solution 1

Hello somur-ruteeb,

Try out this..

Instead of binding the the collection to the combobox datasource you've added items to combobox.Itemscollection for each row. This way we can have different values for each row in the combobox.

Thanks

Renish

Posted 10-Aug-13 0:01am

renish patel

Updated 10-Aug-13 0:02am

v2

Comments

somur-ruteeb 10-Aug-13 7:32am

but in this case how can I save the (selectedvalue)