Validation in ListView Control

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I've one list view control with
<LayoutTemplate> and <ItemTemplate>

in Item Template there are various textboxes

from this ListView user will select some rows and click on the button Go....

on this btn Click I want to validate with Required Field Validator to text boxes present only in these Selected row(s)...

Please provide any tricks or logic u have...........!

Posted 11-Oct-13 0:16am

prashantttt

Updated 11-Oct-13 0:21am

v2

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[no name] 11-Oct-13 6:29am

Just put the validation group.

prashantttt 11-Oct-13 7:09am

I've already given validation group bt its not working.........

Azee 11-Oct-13 6:38am

How are you selecting the ListView rows? CheckBoxes?

prashantttt 11-Oct-13 7:08am

yess with checkboxesss

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**Azee** · Accepted Answer · 2013-10-11T01:24:00

Hey there,

What I understand from your description, you want to validate only those textboxes where row is selected. Here are a few steps you need to follow.

1. Add RequiredFieldValidator for individual TextBoxes of the row (I think you have already done that), and set its Enabled = "false" and ValidationGroup=""

2. Second, Add a ValidationGroup = "YourValidationGroupName" for your Button.

3. Add OnCheckedChanged event for the CheckBoxes and Set AutoPostBack="true"

4. Here is what you need to do inside the OnCheckedChanged event:
- Find all the RequiredFieldValidator controls for each TextBox of the selected row and set Enabled="true" and ValidationGroup="YourValidationGroupName"
Here is the sample code:

C#

protected void checkbox1_CheckedChanged(object sender, EventArgs e)
        {
            CheckBox chk = sender as CheckBox;
            if (chk != null)
            {
                ListViewDataItem item = chk.NamingContainer as ListViewDataItem;
                if (item != null)
                {
                    RequiredFieldValidator RFV1 = item.FindControl("RequiredFieldValidator1") as RequiredFieldValidator;
                    if (RFV1 != null)
                    {
                        RFV1.Enabled = chk.Checked;
                        if (chk.Checked)
                            RFV1.ValidationGroup = "YourValidationGroupName";
                        else
                            RFV1.ValidationGroup = "";
                    }

                    RequiredFieldValidator RFV2 = item.FindControl("RequiredFieldValidator2") as RequiredFieldValidator;
                    if (RFV2 != null)
                    {
                        RFV2.Enabled = chk.Checked;
                        if (chk.Checked)
                            RFV2.ValidationGroup = "YourValidationGroupName";
                        else
                            RFV2.ValidationGroup = "";
                    }
                    //Do the same for remaining RequiredFieldValidators
                }
            }
        }

Let me know if it helps.

Azee...