Error Occured 'Speciefiet cast is not valid'

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I give the following Code in Gridview

XML

<asp:TemplateField HeaderText="MAP" SortExpression="UCM_MAPPED">
              <EditItemTemplate>
                  <asp:CheckBox ID="maphdr" runat="server" Checked='<%# Bind("UCM_MAPPED") %>' />
              </EditItemTemplate>
              <ItemTemplate>
                  <asp:CheckBox ID="ucm_mapped" runat="server" Checked='<%# Bind("UCM_MAPPED") %>' />
              </ItemTemplate>
          </asp:TemplateField>

But the error is occured 'Specified cast is not valid'

I don't Know, Why it is? Please help me......

Posted 31-Jul-12 21:07pm

devausha

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Comments

Philip Stuyck 1-Aug-12 3:10am

On which line is this error occurring ? Is it the sort expression or the bindings ?

devausha 1-Aug-12 3:12am

In this line With in the 'itemtemplete' When I remove "Checked='<%# Bind("UCM_MAPPED") %>' " it, The error is not displaying. But I want bind the data of table.
<itemtemplate><asp:CheckBox ID="ucm_mapped" runat="server" Checked='<%# Bind("UCM_MAPPED") %>' />

Prasad J 1-Aug-12 3:15am

Ensure the value in the field [UCM_MAPPED] returns True or False not 0 or 1

devausha 1-Aug-12 3:15am

In my database has 0 or 1, how to set it true or false

Prasad J 1-Aug-12 3:23am

Change your query something as follows:
SELECT [field1], [field2],
CASE UCM_MAPPED WHEN 1 THEN 'True' ELSE 'False' End as UCM_MAPPED, ....

devausha 1-Aug-12 3:24am

ok

devausha 1-Aug-12 3:30am

Thank you

1 solution

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pradiprenushe · Accepted Answer · 2012-07-31T21:26:00

Solution 1

Try this

<asp:checkbox id="maphdr" runat="server" checked="<%# Boolean.Parse(Eval("UCM_MAPPED").ToString()) %>" xmlns:asp="#unknown" />

Posted 31-Jul-12 21:26pm

pradiprenushe