Unable to make validation in textboxes being located in EditItemTemplate

dina

16y5.6k.NET

Hi All guys,

I want to make Validation (using javascript) on TextBox that is found in EditItemTemplate of gridview to force the user not to enter blank value
I just wrote :

btnupdate_Click" onClientClick="return validateTextBox()" ID="btnupdate" Text="Update Name">

this code neither call serverside function nor clientside.

I tried to get access to update button in RowDataBound Event and wrote:

btnupdate.Attributes.Add("onclick",return ValidateTextBox()");

but it seems that RowDataBound Event returns the rows that are in normal state only not in edit state

Any Suggestions would be too much appreciated

8 Replies
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Arshad16y ago
Accepted answer
Just put the "return false" as the last line in side of the java script function.
Regards,
Arshad.
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dina16y ago
Thank you very much ,javascript function works fine ,but the error message that is displayed in label HTML control appear and disappear quickly!! , why that happen,is that because of updatepanel??

Best regards.
0
Arshad16y ago
Hi,

The above mention code is correct. use like that.

Button btn=new Button();
TextBox txtBox=new TextBox();
for (int i= 0; i< GridView1.Rows.Count; i++)
{
btn =(Button)GridView1.Rows[i].FindControl("btnupdate");
txtBox= (TextBox)GridView1.Rows[i].FindControl("txtBoxID");
btn.Attributes.Add("onclick","CallJavaScripFunction('"+txtBox.ClientID+"')");
}

Add this peace of code after the DataBind() Method.

Regards,
Arshad.

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dina16y ago
I just want to pass the id of textbox that's located in edittemplate into javascript function as follows:

btnupdate_Click" onClientClick="return validateTextBox(document.getElementById('<%=txtitemname.ClientID%>').id" ID="btnupdate" Text="Update Name">

but error raised "object is required"
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dina16y ago
Textbox gives NULL,I think we couldn't access controls in editItemTemplate in RowDataBound event except GridView_RowUpdating isn't right?
0
Manikavelu Velayutham16y ago
for (int count = 0; count < GridView1.Rows.Count; count++)
        {

            //to get the template field value
            TextBox tx1 = (TextBox)GridView1.Rows[count].FindControl("txt1");
//You can add the attributes here
            tx1.Attributes.Add("OnBlur","Javascript");

        }
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dina16y ago
thanks for your reply

could you tell me how to access this textbox in rowdatabound event?
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Manikavelu Velayutham16y ago
You cant directly access the textbox inside the EditItemTemplate like this document.getElementById('txtname').
It wont work, Becuase textbox is present inside another control, clientid will be generated like "ctl00_txtname" like that. You have to view the source in browser to see how the client id is generated.
To validate the textbox inside the gridview, you need to add the attribute to the textbox in ItemDataBound or RowDataBound of the gridview. so that each textbox in the row will be assigned to that validation.
0