Web Forms :: Changing Backcolor Of Textbox When Input Is Invalid?
Feb 11, 2011
I have an ASP.net page with two textboxes where the user types in input. I applied a requiredfieldvalidator to both textboxes as well. However, I also want the textboxes to change to a backcolor of red if the form is invalid when the user clicks the button to submit the input. I tried this code below in tthe button click event, but doesnt work...
If Page.IsValid = False Then
txtCosts.BackColor = Drawing.Color.Red
txtRevenue.BackColor = Drawing.Color.Red
End If
How else can I change the Backcolor of the textboxes when the input is invalid.......
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Code:
[code]....
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[Code]....
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[Code]....
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<tr>
<th>
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public void InitializeSearch(ref RecipientSearchParams searchParams)
{
if (!String.IsNullOrEmpty(txtGuestName.Text))
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public void LoadParamValues(RecipientSearchParams searchParams)
{
if (!String.IsNullOrEmpty(searchParams.GuestName))
txtGuestName.Text = searchParams.GuestName;
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ddlCompanyName.SelectedValue = searchParams.CompanyName;
if (!String.IsNullOrEmpty(searchParams.CompanyType))
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{
bool ValidateSearch();
void InitializeSearch(ref RecipientSearchParams searchParams);
void LoadParamValues(RecipientSearchParams searchParams);
}
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{
if (!String.IsNullOrEmpty(GuestName))
{
AddHashValue("GuestName", _GuestName);
Description += String.Format("Guest Name {0}; ", _GuestName);
}
if (!String.IsNullOrEmpty(CompanyName))
{
AddHashValue("CompanyName", CompanyName);
Description += String.Format("Company Name {0}; ", CompanyName);
}
if (!String.IsNullOrEmpty(CompanyType))
{
AddHashValue("CompanyType", CompanyType);
Description += String.Format("Company Type {0}; ", CompanyType);
}
public List<Person> ExecuteSearch()
{
PopulateSqlParams();
MSSqlDBProvider db = new MSSqlDBProvider();
SqlConnection conn = db.GetConnection();
List<Person> pList =
DataObjectProvider<Person>.GetObjectList("dbo.PersonNewsletterFilterSearch", CommandType.StoredProcedure,
pHash, conn);
return pList;
}
stored procedure used
(@GuestName IS NULL OR p.FullName LIKE '%' + @GuestName + '%') AND
(@CompanyName IS NULL OR p.ID IN (
SELECT Distinct compGuest.GuestId From CompanyGuest compGuest
Inner Join CompanyDetail compDetail on compGuest.CompanyId = compDetail.PersonId
where compDetail.[Name] = @CompanyName )) AND
(@CompanyType IS NULL OR p.ID IN (
SELECT Distinct compGuest.GuestId From CompanyGuest compGuest
Inner Join CompanyDetail compDetail on compGuest.CompanyId = compDetail.PersonId
where compDetail.[Type] = @CompanyType)) AND
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