Textbox Textchanged event is not firing

Question

Hello All, I have web form With Textboxes and Dropdowns. I set client validation using Required Fields. My Requirement is By using That Textbox content I need to generate dynamic code and store in another textbox. Assume Textbox1 is main First Textbox, Textbox2 is Generated code textbox. I used OnTextChanged event in Textbox1 with AutoPostBack = True; Its working fine as entering data. But Without give any data I am clicking on Submit button. Then It focusing First textbox. And Then I am entering text and selecting next textbox OnTextChanged event is not firing.

sai goutham · Answer

hi Jignesh, I written Code is AutoPostBack="True" OnTextChanged = "textBox1_TextChanged" > > Protected void textBox1_TextChanged(object sender, EventArgs e) { textBox2.Text = textBox1.Text + GenerateRandomNumber(); //This is Generated Code 6 Digits } For TextBox1, I have Required Field. When Click on Submit Button Without Entering TextBox1 It is Validating, But After validation If Write Any Text textBox1_TextChanged Not firing. Even I written the below code in Button Click Event. textBox2.Text = textBox1.Text + GenerateRandomNumber(); And I am calling Button CLick event using Java Script but still it is not working. Onblur = "TextChanged(this);" > function TextChanged(obj){ document.getElementByID( ).Click(); }

Jignesh Kumar · Answer

Hi Sai, Could you please share you html (mark up file) ? Please try for textbox one OnKeyDown="TextChanged(this)"