Validate Textboxes And I Have Value In Double Data Type

Ali Ashiq

I have a two text boxes and i want to take amount and person from user and divide amount/person and convert result into double
here is my code but it will give me error, Here is my code and below is the erro code

protected void btnSearch_Click(object sender, EventArgs e) { if((txtAmount.Text == "") || (txtPerson.Text == "")) { Response.Write("please enter amount"); }  else { double amount = int.Parse(txtAmount.Text); double persons = int.Parse(txtPerson.Text); double result = amount / persons; d.Price = Convert.ToInt32(result); d.Select(d); Display(); }




Line 39:             else Line 40:             { Line 41:                 double amount = int.Parse(txtAmount.Text); Line 42:                 double persons = int.Parse(txtPerson.Text); Line 43:                 double result = amount / persons;

3 Replies

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Kalai12y ago
Accepted answer
create a label and assign your error message to Label. Use CSS also.

ex:

lblErr.Text = "please enter amount";
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Ali Ashiq12y ago
thank you so much sir it solved my problem thank you for your quick response! ac i ask one question! now the error message is begin on the top of rather than near textbox or under the textbox how could i resolved this problem
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Kalai12y ago
Try like this.

double amount = Convert.ToDouble(txtAmount.Text);
double persons = Convert.ToDouble(txtPerson.Text);
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