when i am binding dropdown, one item repeats 2 times

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good evening,

when i am binding dropdown to the database, one dropdownlist item repeats two times.

please help me.

thank you.

Posted 27-Feb-13 0:25am

Member 9567873

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kishore Rajendran 27-Feb-13 6:37am

please post your code

Member 9567873 27-Feb-13 6:55am

this is my code

public void DropDownFill()
{
ItemManagementDetails itemDetails = new ItemManagementDetails();
ListItemForDropDown list = new ListItemForDropDown();
InventoryClient objService = new InventoryClient();

list = objService.FillDropDownStore();
list.List.RemoveAt(0);
ddlStoreId.DataSource = list.List.OrderBy(x => x.Text);
ddlStoreId.DataBind();
ddlStoreId.Items.Insert(0, "--Select --");

}

Member 9567873 27-Feb-13 6:59am

I have posted the code please see the code and please help me

Matej Hlatky 27-Feb-13 7:03am

Have you tried to use DISTINCT statement / Distinct() Linq extension method?

Member 9567873 27-Feb-13 7:08am

no i have not used please tell me how to use it

Matej Hlatky 27-Feb-13 7:09am

Just add Distinct() at the end of your linq methods: ddlStoreId.DataSource = list.List.OrderBy(x => x.Text).Distinct();

Member 9567873 27-Feb-13 7:15am

i have added .Distinct() but it is not working.

Rai Pawan 27-Feb-13 7:19am

It pretty much seems to be the case where your method titled DropDownFill is being called twice. Probably at page_load event and on some other event. Try to debug the method, check whether it is getting called twice.
-Pawan

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Armandt__ · Answer 1 · 2013-02-27T04:58:00

Solution 3

Check what your query returns, maybe its in there 2 times

Posted 27-Feb-13 4:58am

Armandt__

Asim Mahmood · Answer 2 · 2013-02-27T03:09:00

Solution 1

there is some issue in your code check it painfully, otherwise following code you can use.

C#

this.drpDown.Clear();
this.drpDown.DataSource = dt;
this.drpDown.DataBinding();

Posted 27-Feb-13 3:09am

Asim Mahmood