CheckBox List And RadioButtonList

Question

Like That How to get CheckBoxlist And RadioButton List in asp.net

Amit Mohanty · Answer

CheckBoxList control in ASP.NET: Option 1 Option 2 Option 3 To access the selected values of the CheckBoxList control in code-behind, you can use the below code. string selectedValues = string.Empty; foreach (ListItem item in CheckBoxList1.Items) { if (item.Selected) { selectedValues += item.Value + ","; } } selectedValues = selectedValues.TrimEnd(','); RadioButtonList control in ASP.NET: Option 1 Option 2 Option 3 To access the selected value of the RadioButtonList control in code-behind, you can use the below code: tring selectedValue = RadioButtonList1.SelectedValue;

Naimish Makwana · Answer

Hello Tarun, Try this. For CheckBoxList: Select at least one option: For RadioButtonList: Select one option: Thanks Naimish Makwana

Tarun · Answer

Cascading DropdownList if (DropDownList2.SelectedValue == "0") { DropDownList3.SelectedValue = "0"; DropDownList3.Enabled = false; } else { DropDownList3.Enabled = true; SqlParameter param = new SqlParameter("@sid", DropDownList2.SelectedValue); DataSet ds = new DataSet(); ds = GetData("usp_city_get", param); if (ds.Tables[0].Rows.Count > 0) { DropDownList3.DataSource = ds; DropDownList3.DataBind(); DropDownList3.Items.Insert(0, new ListItem("--select city--", "0")); } } protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { Fill_Country(); DropDownList2.Items.Insert(0, new ListItem("--select state--", "0")); DropDownList3.Items.Insert(0, new ListItem("--select city--", "0")); DropDownList2.Enabled = false; DropDownList3.Enabled = false; } } public void Fill_Country() { DataSet ds = new DataSet(); ds = GetData("usp_country_get", null); if (ds.Tables[0].Rows.Count > 0) { DropDownList1.DataSource = ds; DropDownList1.DataBind(); DropDownList1.Items.Insert(0, new ListItem("--select country--", "0")); } } private DataSet GetData(string SP_Name, SqlParameter param) { SqlDataAdapter da = new SqlDataAdapter(SP_Name, Con); da.SelectCommand.CommandType = CommandType.StoredProcedure; if (param != null) { da.SelectCommand.Parameters.Add(param); } DataSet ds = new DataSet(); da.Fill(ds); return ds; } protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) { if (DropDownList1.SelectedValue == "0") { DropDownList2.SelectedValue = "0"; DropDownList2.Enabled = false; } else { DropDownList2.Enabled = true; SqlParameter param = new SqlParameter("@cid", DropDownList1.SelectedValue); DataSet ds = new DataSet(); ds = GetData("usp_state_get", param); if (ds.Tables[0].Rows.Count > 0) { DropDownList2.DataSource = ds; DropDownList2.DataBind(); DropDownList2.Items.Insert(0, new ListItem("--select state--", "0")); } } DropDownList3.SelectedValue = "0"; DropDownList3.Enabled = false; }